define atomic number and mass number – describe how they differ

Answers

Answer 1

Answer:The major difference between atomic number and mass number is that the atomic number states the number of protons present in an atom whereas, the mass number indicates the total of the number of protons and the number neutrons present in an atom.i) Atomic number is the total number of protons present in the nucleus of an atom. It is also equal to the number of electrons for a neutral atom. Example, atomic number of sodium is 11. ii) Mass number is the number of protons and neutrons in the nucleus taken together. For example, mass number of sodium is 23 g/mol.

hope this helps have a great night❤️❤️❤️❤️

Explanation:


Related Questions

A mutation always causes a change in a protein or a trait.

true or false ??

Answers

false, a mutation can be the exact same
The answer is false


Which cell organelle supports the cell and is made of cellulose? (This structure is made out of a non-living material and found only in plant cells)?A-cell membrane
B-cell wall C-ribosome
D-nucleus

Answers

Cell wall I’m pretty sure

What are factors in an experiment that are not changed but are kept the same for both and normal group and the experiment group?

Answers

Explanation:

The control group and experimental group are compared against each other in an experiment. The only difference between the two groups is that the independent variable is changed in the experimental group. The independent variable is "controlled" or held constant in the control group.

DNA < | > Which model best represents strand 2? Below is a model of strand 1 of a DNA double helix. Remember, all models have limitations.

Answers

Answer:

Correct answer is A since it is the only one that is oppositely faced and the shape of the boxes is same.

How would global warming influence the intensity of hurricanes?
A)
Global warming traps the storm causing hurricanes to intensify.
B)
Global warming increases temperature of sea water causing hurricanes to intensify.
C)
Global warming evaporates gas from the sea causing hurricanes to intensify.
D)
Global warming activates solar energy absorption causing hurricanes to intensify.

Answers

Answer:

i would say a or b

Explanation:

sowwy i took a class on this but it was a while ago

Answer:

B

Explanation:

I took the test.

A is a chain of molecules linked with peptide
bonds.

Answers

Answer:

Polypeptide

Explanation:

Which of these are consumers in a temperate broadleaf forest? (Select all that apply.)
deer
bobcats
birds
lions
10 points ppl!

Answers

Answer:

Consumers in temperate broadleaf forests include insects, small rodents, birds, deer, foxes, bobcats, wolves, and bears.

Answer:

Birds, Bobcats and Deer.

Explanation:

Lions are not part of the Temperate Broadleaf Forest.

In the homeostasis lab we are using ____________________ as a homeostatic parameter.

Answers

Answer:

Body temperature

Explanation:

We use body temperature as homeostasis parameter in the lab.

Homeostasis can be described as a self regulating mechanism used by the body systems for stability maintainable so as to adjust to several conditions that are important for survival.

The way the body controls the body temperature in humans is a good description of homeostasis

The RNA that is translated into a polypeptide is ______ RNA

Answers

Answer:

The RNA that is translated into a polypeptide is messenger RNA

Explanation:

Brainliest please! :)

The RNA that is translated into a polypeptide would be the messenger RNA.

For translation to occur, genetic information on DNA is first transcribed to messenger RNA in the nucleus in a process known as transcription. The pre-mRNA then undergo some modifications before being transported to the cytoplasm where it gets translated into protein.

The mRNA binds to the ribosome and another RNA, the transfer RNA, binds with its anticodons. The genetic codes on the mRNA are read in 3s and the respective amino acids corresponding to the anticodons on the tRNA are released. The amino acids are then linked together by peptide bonds.

More on translation can be found here: https://brainly.com/question/7415934

Why do scientists think that all modern plants,
animals, and fungi can be traced to protist
ancestors?

Answers

Answer: Scientists think that all modern plants, animals, and fungi can be trace to protist ancestors because the protists is the root of all eukaryotic diversity. yw.

Scientists think that all modern plants, animals, and fungi can be trace to protist ancestors because the protists is the root of all eukaryotic diversity. ... The function that do cilia and flagella in protists carry out is movement. The first multicellular animals presumably evolved from colonial protists (most likely choanoflagellates), and within the colonies, cells progressively differentiated from one another, acquiring specific functional characteristics. It may sound like a bit of a stretch, but in fact such a phenomenon can be observed in colonies of extant unicellular organisms, both prokaryotes and eukaryotes, where some cells of the colony can become differentiated under particular environmental conditions. We can speculate that early in the history of animals some differentiation genetic programs evolved, got stabilized, and became inheritable from one generation to the next. Once different populations of cells were established in the colony, the door was opened to further specialization. Specialized cells were not initially grouped in organs but were more like regionalized populations or layers of cells, as we see in sponges, and morphogenesis progressively evolved

How Deep is the Deepest Hole in the World?

Answers

Answer:

40,230ft

Explanation:

This is the Kola Superdeep Borehole, the deepest manmade hole on Earth and deepest artificial point on Earth. The 40,230ft-deep (12.2km) construction is so deep that locals swear you can hear the screams of souls tortured in hell

Answer:

11,034 meters

Explanation:

This is the Mariana Trench and is the deepest part of the ocean, and deepest location on earth.

how will you test for starch ( carbohydrates) in food item​

Answers

Answer:

Explanation:

Starch, a carbohydrate , can be identified by a positive iodine test. A few drops of iodine solution are added to a raw or boiled sample of the substance suspected of containing starch. If starch is present, the substance will turn blue-black in the area where the iodine solution touches it.

The chemical that moves from the axon of one neuron across a gap to the dendrite of
another is a n):
Schwann Cell
Vitamin A
Node of Ranvier
Neurotransmitter

Answers

Answer:

Schwann Cell

Explanation:

pls help with this question pls help ur my only hope

Answers

visible light ❤️ your welcome

infrared radiation , answer choice number 3

How many groups of protists are there

Answers

Answer:

3 groups.

Explanation:

Each of these three groups have multicellular species and the green and red algae have many single-celled species. The land plants are not considered protists.

Answer:

3 groups

Explanation:


Why is water necessary for living organisms

Answers

Explanation: They need water to survive, without water it doesn't have energy. Like humans.

All cellular processes take place in a water medium. All the reactions that take place within our body and within the cells occur between substances that are dissolved in water. Substances are also transported from one part of the body to the other in a dissolved form. Hence, livin organisms need to maintain the required level of water within their bodies in order to stay alive.Terrestrial life - forms require fresh water for this because their bodies cannot tolerate or get rid of the high amounts of dissolved salts in saline water.

These are all the reasons for which water is necessary for all living organisms dwelling on the earth.

Hope you could get an idea from here.

Doubt clarification - use comment section.

What are 3 beneficial functions of coastal wetlands?

Answers

Answer:

Hope it helps

Explanation:

Wetlands provide many societal benefits: food and habitat for fish and wildlife, including threatened and endangered species; water quality improvement; flood storage; shoreline erosion control; economically beneficial natural products for human use; and opportunities for recreation, education, and research

List 3 ways that microwaves are beneficial to society

Answers

To Microwave ovens heat foods quickly and efficiently, making them a common if not extremely common object you’ll encounter in a kitchen.

The young maggots grow rapidly because of _____ offered by the dead body.

the bad smells
the rich food source
the safety
the garbage located near the body

Answers

Answer:

The rich food source offered by the dead body

Explanation:

Since the maggots are surrounded by large amounts of food right off the get go they are able to consume plenty of protiens to assist in their growth.

Answer:

2. the rich food source

Explanation:

on quizlet and took it on test

The oxygen released during photosynthesis comes from molecules of water
True or False

Answers

Answer: False

Photolysis takes place in the light dependent reaction of the photosynthesis. The reaction can be represented as:  H 2 O + 2 photons --> 2 e  −   + 2H  +   + O.  Here, the electrons released are accepted by the photosystem to fulfill the electron gap. The last electron acceptor is the oxygen and thus, the oxygen is liberated from the water molecule. The experiments conducted by Samuel Ruben and Martin Kamen by using radioactive isotopes helped to prove that the oxygen liberated during photosynthesis came from photolysis the water.

Explanation:

Photosynthesis is the process in which light energy is converted to chemical energy in the form of sugars. In a process driven by light energy, glucose molecules (or other sugars) are constructed from water and carbon dioxide, and oxygen is released as a byproduct.Carbon dioxide is released during photosynthesis. Plants which synthesise their food themselves are called saprotrophs.

Plant cells have which of the following characteristics? Select all that apply.


Answers

Answer:

cell walls and plasma membranes

chloroplasts

large hypertonic vacuoles

Explanation:

Hope this helps :)

Why might a foam cup have a greater mass before you compress it than after you compress it?

Answers

Foam wouldn’t have been broken down before yet after it would so therefore there would be less mass if it was compressed

What animal is this

Answers

Answer:

that is a mountain lion

dfdvvdfbd

You are looking at the color of feathers in ducks and find that Green feathers (G) are dominant to yellow feathers (g). However, a second gene, H, controls whether the color will be expressed in the feathers. If the duck is hh, the duck will always be white, because the pigment does not go into feathers. What ratio of phenotypes in the progeny would you expect following a dihybrid cross

Answers

Answer:

Option C , 9:3:4

Explanation:

The options for the questions are there in the attachment

Solution-

This is the case of recessive epistasis in which recessive allele has a masking effect on  alleles G and g.

GgHh * GgHh

The offspring will be

GH Gh gH gh

GH GGHH GGHh GgHH GgHh

Gh GGHh GGhh GgHh Gghh

gH GgHH GgHh ggHH ggHh

gh GgHh Gghh ggHh gghh

Green colored - 9

Yellow colored - 3

White colored- 4

Submit your detailed description of five ways animals contribute to your life and the lives of those around you.

Answers

Answer:

2.1 As food.

2.2 For clothing and textiles.

2.3 For work and transport.

2.4 In science.

2.5 In medicine.

2.6 In hunting.

2.7 As pets.

2.8 For sport.

How does a flash flood compare to flooding?

Answers

Answer:

Flood: An overflow of water onto normally dry land. ... Ponding of water at or near the point where the rain fell. Flooding is a longer term event than flash flooding: it may last days or weeks. Flash flood: A flood caused by heavy or excessive rainfall in a short period of time, generally less than 6 hours.

Explanation:

Answer:

They both cause floods and fill up some places and they are both sometimes caused by rains or broken dams for a pretty long time. Flood is caused by rain and bad weather while flash flood is the result of water overflowing from a contained location like a lake, river or reservoirs. Flood is a term that can be used to describe any type of water overflow while flash floods are specific to broken dams, overflowing lakes and clogged rivers. The word flood both stands for their meaning.

Which of the following statements is not a similarity between a habitat and an ecosystem?

Answers

Answer:

The habitat is the physical area where a species lives.Many factors are used to describe a habitat...A habitat is the actual place of the ecosystem,whereas the ecosystem includes both biotic and abiotic factors in habitat

A biotech company had discovered in animal experiments that drug A might be helpful in treating insomnia (inability to sleep). After it found no apparent drug side effects in humans, the company tested the effects of the drug in 48 individuals. The best stated hypothesis for the drug trial is

Answers

Answer:

After It Found No Apparent Drug Side Effects In Humans, The Company Tested The Effects Of The Drug In 48 Individuals.The Best Stated Hypothesis For The Drug Trial Isa. How Does Drug ... A biotech company had discovered in animal experiments that drug A might be helpful in treating insomnia (inability to sleep). After it ...

An 8-mer oligopeptide has the following amino acids:
A D E E F M W Y (two Es are present)
Here is your evidence:
1. Edman degradation produces A.
2. CNBr produces a 5-mer and a 3-mer that contains W.
3. Chymotrypsin produces two dipeptides and a tetrapeptide. The tetrapeptide has a total net charge of -4 at pH 12.5.
4. Staphylococcal protease in phosphate buffer produces a tetrapeptide (4-mer), dipeptide, free D, and free W.
5. Staphylococcal protease in acetate buffer produces a pentapeptide (5-mer), dipeptide, and free W.
Put in the sequence of the 8-mer (use caps here) i.e. ABCDEFGH.

Answers

لول أنا لا أعرف أن الكثير من الرياضيات صراخ لذلك أنا لا أعرف كيف أساعدك في المعادلة الخاصة بك

What would you expect to increase after a forest fire?

A.Erosion
B.Weathering

Answers

Answer:

B. Weathering

Explanation:

Fire makes trees weather and die.

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Write as if you are and immigrant in the 19th century who has recently come to America. Describe where you are from and why you came to America. Explain your experiences and include where you are living, what the conditions are like, where you work, how you are treated etc. 200 words pls i need it in a little I will give brainiest Using the equation below, how many liters of water can be made from 7.6 L of oxygen gas at STP? A person has a 0.125 probability of getting the number 3 on a roll of an eight-sided die. If a person rolls the die 24 times, and gets a 3 on one-half of the rolls, what is the difference between the theoretical probability and the empirical probability of the person getting the number 3 on a roll? A. 0.125 B. 0.375 C. 0.5 D. 0.25 The necessities of our altered relationship to the Pacific Ocean [after the late 1840s] found expression in a comprehensive treaty of friendship, commerce, and navigation with the sovereign kingdom of Hawaii. . . .[The line] from San Francisco to Honolulu [in Hawaii] marks the natural limit of the ocean belt within which our trade with [eastern Asia] must flow. . . . When we survey the stupendous progress made by the western coast during the thirty years of its national life as a part of our dominion, . . . it is not easy to set a limit to its commercial activity or foresee a check to its maritime supremacy in the waters of [eastern Asia], so long as those waters afford, as now, a free and neutral scope for our peaceful trade. . . .[The United States] firmly believes that the position of the Hawaiian Islands as the key to the dominion of the American Pacific demands their neutrality, to which end it will earnestly cooperate with the native government. And if, through any cause, the maintenance of such a position of neutrality should be found by Hawaii to be impracticable, this government would then unhesitatingly meet the altered situation by seeking an avowedly American solution for the grave issues presented.Secretary of State James G. Blaine, letter to James M. Comly, United States ambassador to Hawaii, 1881The foreign policy ideas in the excerpt are best explained by which of the following nineteenth-century developments?A response to changing immigration patternsA response to changing immigration patternsAAn attempt to end Reconstruction policiesAn attempt to end Reconstruction policiesBA reaction to expanding United States economic activityA reaction to expanding United States economic activityCAn effort to enact political reforms in urban areas Jenny read that most of Earths water is salt water, while only 3% is fresh water. She also read that not all of the fresh water is accessible. Most of Earths fresh water is tied up in which two areas? A. glaciers and underground B. ice and glaciers C. underground and lakes D. glaciers and lakes PLEASE HELPPPP!! I KNOW THE ANSWER IS NOT 495. I WILL MARK WHOEVER GETS IT RIGHT THE BRAINLIEST 6. This part of Earth's atmosphere blocks the sun's harmful rays.Ozone layerStratosphereMesosphereTroposphere What is the perimeter of the shaded figure? Please help me ASAP! Giving brainliest Three sentence in Spanish for almorzar change the verb During fertilization , the parts of the sex cell that join are the 1. Membranes 2. Nuclei 3. Ribosomes 4. Vacuoles What is the right answer what is one of the risk factors that influences a person's ability to abstain from sexual intercourse Write an equation in slope-intercept form for a line that passes through the point (1, 6) andhas a slope of 2 Page 1:Page 2:What perspective on the League of Nations does thispolitical cartoon convey?PUT SACK INTS CAGE SOE. 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