The electronic configuration of four elements are given below. Which elements does

The electronic configuration of four elements are given below. Which elements does not belong to the same family as others ?

Options

(a) [Xe]4f¹⁴5d¹°1s²
(b) [Kr]4d¹°5s²
(c) [Ne]3s³3p⁵
(d) [Ar] 3d¹°4s²

Correct Answer:

[Ne]3s³3p⁵

Explanation:

Elements (a), (b) and (d) belong to the same group since each one of them has two electrons in the s sub shell. In contrast, element(c) has seven electrons in the valence shell and hence does not lie in the same group in which elements (a), (b) and (d) lie

admin:

Related Questions

  1. If 10 cm³ solution of H₂O₂ ,on decomposition gives 150 cm³ of O₂
  2. The element with positive electron gain enthalpy is
  3. Paracetamol is
  4. Ratio of Cᵥ and Cᵥ of the gas X is 1.4. The number of atoms of the gas X present
  5. Which of the following equations describe the first law of thermodynamics