8 periodicity Flashcards
1
Q
what happens to atomic radius across period 3?
A
decreases
2
Q
what happens to 1st ionisation energy across period 3?
A
generally increases
3
Q
why does atomic radius decrease down a group?
A
nuclear charge increases but shielding stays similar
4
Q
why does 1st ionisation energy generally increase across period 3?
A
nuclear charge increases
atomic radius decreases
stronger attractive forces between the nucleus and outer electrons
5
Q
what happens to melting point across period 3?
A
no trend
