The atomic number or proton number (symbol Z) of a chemical element is the number of protons found in the nucleus of every atom of that element. The atomic number uniquely identifies a chemical element. It is identical to the charge number of the nucleus. In an uncharged atom, the atomic number is also equal to the number of electrons.
Answer:
its basically represents the number of protons in the nucleus which in a neutral atom equals the number of electrons outside the nucleus and that determines the place of the element in the periodic table
Explanation:
sry i its too long
hope it helps
How do the metals in group 1 compare with the transition metals?
Answer:
Group 1 metals and transition metals are different from each other, mainly based on the colour of the chemical compounds that they form. The key difference between group 1 metals and transition metals is that the group 1 metals form colourless compounds, whereas the transition metals form colourful compounds.
If there is H2O and O2 what it's going to be
Answer:
o232
Explanation:
What charge would each element obtain when it becomes an ion? a) aluminum e) lodine
b) lithium c) barium f) phosphorus g) sulfur d) bromine h) magnesium
Aluminum forms an ion of +3 while the bromine atom form an ion of -1.
What is an ion?An ion is an atom which has lost/gained one or more electrons. The ion will be positive if an electron is lost and will be negative when an electron is gained by the specie.
The ions formed by each of the species is;
Al = +3I = -1Li = +1Ba= +2P = -3S = -2Br = -1Mg = +2Learn more about ions:https://brainly.com/question/1782326
identify the number of bonding pairs and lone pairs of electrons in water.
Answer:
2 bonding pairs and 2 lone pairs
Why are some ions known as poly atomic ions?
Answer:
NH4+ ammonium ion hydroxide ion
SO32- sulfite ion perchlorate ion
NO3- nitrate ion chlorate ion
NO2- nitrite ion chlorite ion
Which of the following areas would most likely see the largest amount of heat
flowing up towards the surface of Earth?
a. any area that just experienced an earthquake
b. an area of active volcanoes
c. all areas around the equator
d. heat never flows to the surface of the earth
Answer:
c. because all countries around the equator experiences heat
how many neutrons are in the stable isotope of rhenium
Properties of Rhenium-185 Isotope:
Properties of Rhenium-185 Isotope: RHENIUM-185
Neutron Number (N) 110
Atomic Number (Z) 75
Mass Number (A) 185
Nucleon Number (A) 185
25 more rows
before making a covalent bond, where do the atom's electrons spend most of their time?
Answer:
Before bonding, the atom's electrons spend most of their time around the nuclei of each atom. Once bonded, the electrons spend most of their time between the two nuclei
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Explanation:
Solids have a definite shape and volume. Liquids have a definite volume, but take the shape of the container. Gases have no definite shape or volume.
The kinetic theory of matter (particle theory) says that all matter consists of many, very small particles which are constantly moving or in a continual state of motion.
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The example of a unicellular organism is amoeba
How many moles of HCl will be produced when 34.56 g of AIC3 are reacted according to this chemical equation
Answer:The answer to your question is It will be formed 0.39 moles of H₂
Data
moles of H₂ = ?
moles of HCl = 0.78
moles of Zinc = excess
Balanced chemical reaction
2 HCl + Zn ⇒ 1 H₂ + ZnCl₂
Process
Explanation:
1.- Use proportions to solve this problem. Consider the coefficients of the balanced reaction.
2 moles of HCl ---------------------- 1 mol of H₂
0.78 moles of HCl ----------------- x
x = (0.78 x 1) / 2
- Simplification
x = 0.78 / 2
- Result
x = 0.39 moles of H₂
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Answer:
For your first one it is C and your second one is D how deep is the lake.
Its going to be disicult to swim down at the bottom of a lake with all your class just to see how deep it is, so its better to make a model
how many water molecules self ionize in one liter of water
Answer:
yes
Explanation:
because I think it is correct fo u
jeffrey is on his skateboard and starts skating down a ramp. ten seconds later he is traveling at 20.0m/s calculate the acceleration
jude uses me in a beam with loads of others like me to find new materals
Answer:
good morning I am going home with 6
Is CH4 a molecule, compound, or both?
This painting is showing the actions of American colonists at the 1773 protest known by what name? A) The Plymouth Rocks B) The Boston Massacre C) The Boston Tea Party D) The New York Draft Riots
that will be the Boston tea party
Explanation: C) the Boston tea party
I did the quiz
De quien es el modelo matemático
Answer:
si
Explanation:
what kind of chemical processes are used to create these synthetic products
Aluminium is a natural material that is widely utilised in a variety of sectors and may be converted into a variety of synthetic goods via various chemical processes.
The following are some examples of synthetic compounds created from aluminium and the accompanying chemical processes:
Aluminium Foil: Aluminium foil is a thin, flexible sheet of metal.Aluminium Cans: Aluminium cans used for beverage packaging are created through a process known as can forming. Aluminium alloys are synthetic goods formed by mixing aluminium with additional elements such as copper, zinc, magnesium, or silicon.Thus, these are only a few examples of synthetic goods generated from aluminium and the chemical processes that produce them.
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Your question seems incomplete, the probable complete question is:
What synthetic products are derived from the natural resource aluminum? What kind of chemical processes are used to create these synthetic products?
Which phrase best describes electronegativity?(1 point)
A.) the partial charge an element carries in a covalent or ionic bond
B.) the number of electrons an element shares in an ionic bond
C.) the number of electrons an element has
D.) the relative strength with which an element attracts electrons in a chemical bond
Answer:
ELECTRONEGATIVITY is the tendency of an atom in the molecule to attract the bonded pair of electrons .
Explanation:
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Answer:
the relative strength with which an element attracts electrons in a chemical bond
Explanation:
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Answer:
White-Blue-Red-Yellow-Orange
Explanation:
The sun emits all colors of the rainbow more or less evenly.
⚠️ I'm not 100% sure but for sure there is White ⚠️
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Answer:
C. negative global warming
Which phrase describes transmutation?(1 point)
the conversion of an atom of one element into a different element through nuclear changes
the conversion of energy to matter through chemical changes
the conversion of protons to neutrons through nuclear changes
the conversion of one substance to another through chemical changes
Help plss quick
thx
The phrase that describes transmutation is ; ( A ) The conversion of an atom of one element into different element through nuclear changes.
Transmutation is simply the change of an element to another element, transmutation occurs at the nucleus of the atom of an element and this process is initiated through nuclear reaction ( radioactive decay ).
Therefore the conversion of an atom of one element into different element through nuclear changes summarizes the term "transmutation".
Hence we can conclude that the phrase that describes transmutation is the conversion of an atom of one element into different element through nuclear changes.
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Answer:
Unit 4 Lesson 2:
Energy Release Quick Check
1. 138
2. The conversion of an atom of one element into a different element through nuclear changes.
3. A nuclear equation is balanced according to mass number. A chemical equation is balanced according to the total mass before and after the change.
4. 82
5. Some of the matter is converted to energy.
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How would the boiling point of water be affected if you doubled the amount of water?
Answer:
The boiling point wouldn´t be effected. The amount of time it would take to get it to that point would increase
Explanation:
Which statement(s) correctly compare the masses of protons, neutrons, and electrons? Select two options.
1. Protons and neutrons have similar mass.
2. Protons and electrons have similar mass.
3. Neutrons and electrons have similar mass.
4. Protons are smaller than a neutron or an electron.
5. Neutrons are smaller than a proton or an electron.
6. Electrons are smaller than a proton or a neutron.
Answer:
6 Electrons r smaller than a proton or a neutron
Answer:
1st and last one
Explanation:
AgNo3.
Electrolysis happening in water.
5.6l of Oxigen goes in Anod how much Ag goes on Ch?
According to the kinetic molecular theory, the pressure of a gas increases as
the number of moles of gas molecules increases because —
Answer:
The volume of the gas therefore becomes large as the temperature of the gas increases, the frequency of collisions with the walls of the container must increase. This, in turn, leads to an increase in the pressure of the gas.
Explanation:
hope it helps.
How did james Chadwick know that neutrons are neutral ?
Answer:
In 1932, he tried similar experiments himself, and became convinced that the radiation ejected by the beryllium was in fact a neutral particle about the mass of a proton. ... Chadwick also noted that because the neutrons had no charge, they penetrated much further into a target than protons would.
Explanation:
what should be done if a spectrophotometer reports an absorbance that is too high?