please help :((
Which of the following atoms has the largest radius?
1. Na
2. H
3. Ar
4. P
5. F
6. AI
Answers
Related Questions
What is the wavelength of a radio wave that has a frequency of 9.40 X 10^8Hz?
3.1
Answers
Explanation:
Wavelength relates to frequency as follows:
λ
=
v
f
in which
f
is the frequency,
v
is the speed of light, and
λ
is the wavelength.
Filling this in for the example:
v
=
3
⋅
10
8
m
s
f
=
4.47
⋅
10
14
H
z
=
4.47
⋅
10
14
s
−
1
λ
=
3
⋅
10
8
m
s
4.47
⋅
10
14
s
−
1
=
6.71
⋅
10
−
7
m
from m to nm is
⋅
10
9
So the wavelength is:
671
n
m
(red light).
What metal is highly reactive and bonds easily with other elements
Answers
Answer: alkali metal
Explanation: ONLY if that is in you suggestions
if not i think this is right
solutions of barium bromide and sodium phosphate combine to form solid barium phosphate and aqueous sodium bromide. true or false?
Answers
Answer:
The Answer Is False
Explanation:
I Just Think Thats The Answer
If the temperature of a liquid increases, how is the average kinetic energy of
the liquid affected?
o Increase
o Remains the same
o Decrease
Answers
quotes for climate change
for example ‘’CLIMATE CHANGE IS REAL!’’
‘’SMALL CNAGES CAN MAKE A DIEFFENCE!’’
give me 3 and more
Answers
Answer:
Explanation:
WAKE FOR CLIMATE CHANGE IS NOT FAKE
SAVE THE GLACIERS
HELP THE ARCTIC ANIMALS
Why do humans have a tailbone? What could it tell us about our past?
Answers
Answer:
Monkey have tail we come from monkey
Answer:
The coccyx, or tailbone, is the remnant of a lost tail. ... The coccyx serves as an attachment site for tendons, ligaments, and muscles. Tailbones helped our ancestors with mobility and balance
Explanation:
Facts about radiation in the human body
Answers
Answer:
How Radiation Affects Your Body. Radiation can damage the DNA in our cells. High doses of radiation can cause Acute Radiation Syndrome (ARS) or Cutaneous Radiation Injuries (CRI). High doses of radiation could also lead to cancer later in life.
Because radiation kills rapidly dividing cells (which is why we use it to treat fast-growing cancer cells), radiation exposure most increases the risk of cancers of rapidly dividing cells — leading to leukemia, lymphoma, breast cancer, bladder cancer, colon cancer, liver cancer, lung cancer, esophageal cancer, ovarian
Explanation:
Someone pls help me I will make you brain
Answers
Answer:
the first one
Explanation:
hope this helps
I need help with this can you help me?
Answers
Answer:
This is the answer but I'm sure from all answers. I hope my answer help you.
why does a higher concentration make a reaction faster?
Answers
Answer:
Explanation: because more is always better
Write down the names, physical properties, and inertness of NOBLE GASES ( group no. 8)
Note:
*Please don't copy from anywhere
*50 POINTS!!!!!!!!
Answers
Answer:
There's No Answer Im Sorry
Boron has two naturally-occurring isotopes. Boron-10 has an abundance of 19.8% and actual mass of 10.013 amu, and boron-11 has an abundance of 80.2% and actual mass of 11.009 amu. What is the average atomic mass for all isotopes of boron?
A 10.0 amu
B 10.5 amu
C 10.511 amu
D 10.812 amu
Answers
Answer:
D) 10.812
Explanation:
Given:
The two isotopes of boron (B).
Boron-10 has an abundance of 19.8% and Boron -11 has an abundance of 80.2%
To find:
The atomic mass of europium.
Solution:
Mass of Boron-10 = 10.013 amu
The percentage abundance of Boron-10 = 19.8%
The fractional abundance of Boron-10 =0.198
Mass of Boron-11 = 11.009 amu
The percentage abundance of Boron-11= 80.2%
The fractional abundance of Boron-11= 0.802
The average atomic mass of Boron = A.M
A.M = Mass of isotope x Fractional abundance of isotope
= 10.013amu x 0.198 +11.009amu x 0.802 = 10.81u
Therefore, D) 10.812 amu is the atomic mass of boron.
d. Period 3 element with 6 valence electrons
Answers
Answer:
Sulfur is an element is Period 3 with 6 valence electrons.
The diagram shows the box for an element in the periodic table.
What is the atomic mass of the element shown?
A. 11
B. 23.0
C. 34.0
D. 12
Answers
A
Explanation:
sodium is a chemical element with the symbol and the atomic number is 11
Using the periodic table, complete the ya me to describe each atom. Type in your answers.
Answers
Answer:
Explanation:
Using the periodic table, complete the table to describe each atom. Type in your answers. - 14514242.
Q4. What are the different ways in which human being use rocks ?
Answers
Answer:
To hit someone on the head
Explanation:
self protection
Distinguish the endothermic and exothermic energy changes associated with ionic bond formation, and relate it to stability
Answers
Answer:
When ionic compounds are formed, energy is released which is exothermic energy. If the energy released during bond formation is reabsorbed, the ionic bond holding the positive ions and negative ions together will break apart which is endothermic energy.
Explanation:
The formation of an ionic crystal lattice from its constituent ions is an exothermic process.
Endothermic changes are energy changes in which energy is absorbed while exothermic energy changes are those energy changes in which energy is evolved.
During the formation of an ionic bond, the metal looses electron(s). This is an endothermic process. The nonmetal accepts electrons. This is an exothermic process.
When the ionic crystal is formed, energy is given out because the energy of the lattice is less than the energy of the isolated ions. This heat change is exothermic.
Learn more: https://brainly.com/question/17011733
Where is a mid-ocean ridge exposed above sea level?
Question 11 options:
Himalaya Mountains
Mariana Trench
The Big Island of Hawaii
Iceland
Answers
Answer:
ice land should be it
Explanation:
Answer:
Iceland is the answer.
Explanation:
I need help pleaseee
Answers
.
Which of the following describes Pluto?
1. asteroid
2. moon
3. planet
4. dwarf planet
Answers
Answer:
4. dwarf planet
Explanation:
PLEASE HELP!!
What kind of metal is Co?
Alkali Metal
Transition Metal
Alkaline Earth Metal
Answers
Answer:
I believe Cobalt is a Transition Metal.
Answer:
answer is transition metal
Methane (CH4) is a gas that is found in small quantities in Earth’s atmosphere. Which type of bonds does methane have, and why does one carbon atom bond with four hydrogen atoms? In three to five sentences, explain your answer in terms of valence electrons and electronegativity.
Answers
In methane, the covalent bond is present between one carbon and four hydrogen atoms.
What is methane?Methane is the simplest form of saturated hydrocarbons. Methane is an odorless gas as well as a colorless gas. It has one carbon and four hydrogen atoms which is why methane is also called a tetrahedral molecule.
CH₄ is the chemical formula of methane and is a non-toxic but flammable gas. From the tetrahedral structure of methane, we can see that a carbon atom is bonded to four hydrogen atoms.
One molecule of methane contains four covalent bonds. Each covalent bond is formed between the carbon and one hydrogen atom. The formation of a covalent bond between carbon and hydrogen is due to the small electronegativity difference between carbon and hydrogen.
In this way, carbon completes its octet and hydrogen completes its duplet. Therefore, the covalent bond is formed between one carbon atom bond with four hydrogen atoms in methane.
Learn more about methane, here:
https://brainly.com/question/2127750
#SPJ2
Mg + 2HCl ---> MgCl2 + H2
How many grams of MgCl2 would result from a reaction involving 24.31 g of Mg?
Answers
assumed that all of the initial Mg had reacted, therefore the total amount of Mg had transferred into Mg2+ in MgCl2
Molar mass for Mg is 24.31 g/mole and MgCl2 is 95.21 g/mole
--> nMgCl2= nMg = 24.31 g ÷ 24.31 g/mole = 1 mole
--> so the mass of MgCl2 = 1 mole × 95.21 g/mole = 95.21 g
HELPPPPP
50 points
10. Fill in the blanks in the table below about an atom's subatomic particles.
Answers
A. electron, B. Nucleus
Proton is positive charge, electron is negative charge
proton weight, 1 AMU
(WORD BANK - Neap, gravitational, greatest, moon, high, Spring, low, Sun)
Ocean tides are caused by the ______________ pull of the _______ and the _______. The moon has the __________ effect on the tides. When the Sun, moon and earth are in a straight line, we
have __________ tides. When the Sun, moon and earth are at right angles we have _________
tides. Spring tides are especially _________ tides while neap tides are especially _________tides.
Answers
Answer:
Ocean tides are caused by the gravitational pull of the moon and the sun. The moon has the greatest effect on the tides. When the Sun, moon, and earth are in a straight line, we have Neap tides. When the Sun, moon, and earth are at right angles we have spring tides. Spring tides are especially high tides while neap tides are especially low tides.
Explanation:
brainliest please. . . <3
What is it about water that makes it able to dissolve both polar covalent and iconic substances
Answers
Answer:
A solvent is simply a substance that can dissolve other molecules and compounds, which are known as solutes. ... Because of its polarity and ability to form hydrogen bonds, water makes an excellent solvent, meaning that it can dissolve many different kinds of molecules.
Explanation:
Which element is named after a scientist?
Answers
Why does hydrogen contain more energy than gasoline?
Answers
Answer:
In fact, a fuel cell coupled with an electric motor is two to three is more efficient than an internal combustion engine running on gasoline.
Explanation:
Because hydrogen has a low volumetric energy density, it is stored onbaord a vehicle as a compressed gas to achieve the driving range of conventional vehicles.
How many moles of Oz would be required to generate 13.0 mol of NO2
in the reaction below assuming the reaction has only 74.1% yield?
2 NO (g) + O2 (g) → 2 NO2 (g)
Answers
Answer:32
Explanation:
Have a nice day :)
Design a procedure to test whether the honey that your mother bought from the
supermarket is pure honey or not.
Answers
Answer:
i would test it and get real honey to see if the ingredients are the same
Explanation:
Explanation:
Water Test: In a glass of water, put a spoon of honey, if your honey is dissolving in water then it's impure. Pure honey has a thick texture that will settle at the bottom of a cup or a glass. –Vinegar Test: Mix a few drops of honey into vinegar water, if the mixture starts to foam, then your honey is impure.