Chemistry, Good amount of points for help!!

Where are all my chemistry geniuses at?

1. The pattern of electronegativities would increase as you go across a period and would decrease as you go down a group in the periodic table.

2.  There is a correlation between electronegativity and atomic radius.  As electronegativity increases, atomic radius decreases. As electronegativity decreases, atomic radius increases. This would make sense because as a atomic radius increases, them more farther away the electrons are away from the nucleus because of their many subshells  making it less electronegative. As atomic radius decreases, the electrons are more closer to the nucleus because of their few subshells making the element more electronegative.

3. There is a correlation between ionization energy and electronegativity.  As electronegativity increases, ionization energy increases as well. If it decreases, ionization energy decreases too. This makes sense because the more electronegativity the element, the more they are closer to the nucleus(making them harder to remove) and the more desperate for an electron the atom is.

Explanation:

Hope it helped!

atomic mass = 39

number of neutrons = 20

number of protons= 19

electronic configuration = 1s2 2s2 2p6 3s2 3p6 4s1

the number of electron in first shell = 2

number of electrons in n=3 shell = 8