Periodic Table Flashcards
1
Q
Going down a group the _______ and ________ of protons both change
A
distance and number; only the distance between the valence electrons and the nucleus seems to matter
2
Q
Electron shielding
A
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
3
Q
what do extra inside electrons do to the nucleus?
A
they block the extra positive charge
