2.9 polyelectronic atoms Flashcards
0
Q
why is the outermost e- in a polyelectronic atom not bound as tightly to the nucleus?
A
it is affected by the negative repulsion of the other e-‘s
1
Q
what is a polyelectronic atom?
A
an atom with more than one e-
2
Q
describe screened or shielded e-s
A
e-‘s that feel repulsion of the other e-‘s in addition to the draw of the nuclear charge (say that the e- os screened or shielded from the nucleus)
3
Q
what are degenerate orbitals?
A
orbitals that have the same energy
4
Q
what causes an e- in a 2s orbital to be attracted to the nucleus more strongly than an e- in a 2p orbital?
A
penetration effect
