Multiple choice

Match the column – I (second row transition metals) with column – II (electronic configuration) and select the correct option.

 
Column – I
Column – II
P. Cadmium 1. [Kr] 4d4 5s1
Q. Molybdenum 2. [Kr] 4d5 5s1
R. Niobium 3. [Kr] 4d10 5s0
S. Palladium 4. [Kr] 4d10 5s2

  1. P - 1, Q - 2, R - 3, S - 4

  2. P - 3, Q - 2, R - 4, S - 3

  3. P - 4, Q - 2, R - 3, S - 1

  4. P - 4, Q - 2, R - 1, S - 3

  5. P - 3, Q - 2, R - 4, S - 1
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Electronic configuration of copper (29Cu) is [Ar] 3d10 4s1. Electronic configuration of chromium (24Cr) is [Ar] 3d5 4s1. Electronic configuration of iron (26Fe) is [Ar] 3d8 4s2. Electronic configuration of vanadium (23V) is [Ar] 3d3 4s2.

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