Using only a periodic table, write the full electron configuration for each of t

ID: 857457 • Letter: U

Question

Using only a periodic table, write the full electron configuration for each of the following elements. Then identify the valence electrons.

I have found all of the electron configurations but it is telling me I am wrong about the Valence electrons

(a) Mg

1s(2)2s(2)2p(6)3s(2)

Valence electrons?

(b)P

1s(2)2s(2)2p(6)3s(2)3p(3)

Valence Electrons?

(c)K

1s(2)2s(2)2p(6)3s(2)3p(6)4s(1)

Valence electrons?

(d) F

1s(2)2s(2)2p(5)

Valence electrons?

(e) Se

1s(2)2s(2)2p(6)3s(2)3p(6)4s(2)3d(10)4p(4)

Valence Electrons?

(f) N

1s(2)2s(2)2p(3)

Valence electrons?

a)2

b)5

c)1

d)7

e)6

f)5

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