Home / Chemistry / Question
MCQ
The electronic configuration of Fe2+ ion is:
Chemistry
A [Ar] 3d6
B [Ar] 3d5
C [Ar] 3d4
D [Ar] 3d6 4s2
Explanation

Fe has configuration [Ar] 3d6 4s2; losing 2 electrons from 4s gives [Ar] 3d6.

Related MCQs

The empirical formula of glucose (C6H12O6) is:
Chemistry View
What is the hybridization of the central atom in SF6?
Chemistry View
Which spectroscopy technique provides information about the molecular framework based on bond vibrations?
Chemistry View
What is the hybridization of boron in BF3?
Chemistry View
What is the formula for the equilibrium constant Kc for the reaction: 2SO2(g) + O2(g) <=> 2SO3(g)?
Chemistry View
Which of the following is a strong acid?
Chemistry View