Periodic Table

Question 1

Going down a group the _______ and ________ of protons both change

Answer 1

distance and number; only the distance between the valence electrons and the nucleus seems to matter

Question 2

Electron shielding

Answer 2

the reduction of the attractive force between a positively charged nucleus and its outermost electrons due to the cancellation of some of the positive charge by the negative charges of the inner electrons

Question 3

what do extra inside electrons do to the nucleus?

Answer 3

they block the extra positive charge