chapter 7

Question 1

paulis exclusions principle

Answer 1

no two electrons have the exact same set

Question 2

what are he 4 quantum numbers

Answer 2

n, l, ml, ms

Question 3

what is the principal quantum “n” stand for

Answer 3

determines energy level and size (1,2,3,…)

Question 4

what is the angular momentum quantum # (l)

Answer 4

determines shape (0,1,2, n-1)

Question 5

what is the magnetic quantum # (ml)

Answer 5

determines “orientation”; (-l,…, l)

Question 6

what is the magnetic spin quantum # (ms)

Answer 6

only 2 values up or down determines spin (-1/2, 1/2)

Question 7

what are valence electrons

Answer 7

those in the highest n orbitals

Question 8

what are core electrons

Answer 8

all the electrons besides the valence electrons

Question 9

how is reactivity determined

Answer 9

by valence electrons

Question 10

what is the atomic radii trend

Answer 10

as you go down and to the left it gets larger

up and toward fluorine is smallest

Question 11

what does higher n mean

Answer 11

larger orbitals

Question 12

effective nuclear charge formula

Answer 12

Zeff= Z-core

Z is nuclear charge

Question 13

ionization energy trend

Answer 13

increases moving upward and right toward fluorine

opposite of atomic radii

Question 14

what is electron affinity

Answer 14

change in energy when gaining an e-