Answer:
Potassium = 4s¹
Carbon = 2p²
Sulfur = 3p⁴
Barium = 6s²
Xenon = 5p⁶
Explanation:
1) Potassium is present in group one.
Its electronic configuration is:
K = [Ar] 4s¹
So its highest energy electrons are 4s¹.
2) Carbon is present in group 14.
Its electronic configuration is:
C = [He] 2s² 2p²
So its highest energy electrons are 2p².
3) Sulfur is present in group 16.
Its electronic configuration is:
S = [Ar] 3s² 3p⁴
So its highest energy electrons are 3p⁴.
4) Barium is present in group 2.
Its electronic configuration is:
Ba = [Xe] 6s²
So its highest energy electrons are 6s² .
5) Xenon is present in group 18.
Its electronic configuration is:
Xe= [Kr] 4d¹⁰ 5s² 5p⁶
So its highest energy electrons are 5p⁶
