Question

1. What is the electron configuration of an isolated S atom?

Express your answer in condensed form in order of increasing orbital energy as a string without blank space between orbitals. For example, [He]2s22p2 should be entered as [He]2s^22p^2.

2. What is the electron configuration of an isolated O atom?

Express your answer in condensed form in order of increasing orbital energy as a string without blank space between orbitals. For example, [He]2s22p2 should be entered as [He]2s^22p^2.

Answer 1

1)

Number of electron in S = 16

Electronic configuration is 1s2 2s2 2p6 3s2 3p4

Noble gas having lesser electron than S and closest to it is Neon (Ne)

Number of electron in Ne = 10

electronic configuration of Ne is: 1s2 2s2 2p6

So, electronic configuration of S in noble gas form is: [Ne] 3s2 3p4

Answer: [Ne]3s^23p^4

2)

Number of electron in O = 8

Electronic configuration is 1s2 2s2 2p4

Noble gas having lesser electron than O and closest to it is Helium (He)

Number of electron in He = 2

electronic configuration of He is: 1s2

So, electronic configuration of O in noble gas form is: [He] 2s2 2p4

Answer: [He]2s^22p^4