Friction is the motion of one moving object relative to another
Answer: B
The quotient is what you get when you divide two numbers by each other so therefore x divided by 9. And then 7 less than that number
For group 16 elements, the atomic radii increases down the group as a shell of electron is added on each time.
It would have 11 valance electrons.
Example/Explanation:
Say we are talking about groups 10. Group 10 would have 10 valance electrons because of the atom's electronic arrangement in the periodic table.
