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NEET 2002
Exam
NEET
Year
2002
Subject
Chemistry
Chapter
Classification of Elements and Periodicity in Properties

NEET 2002 · Chemistry · Classification of Elements and Periodicity in Properties

An atom has electronic configuration 1 s^2 2 p^6 3 s^2 3 p^6 3 d^3...

An atom has electronic configuration 1s21 s^2 2p63s23p63d34s22 p^6 3 s^2 3 p^6 3 d^3 4 s^2, in which group it will be placed?

Options

  1. AFifth
  2. BFifteenth
  3. CSecond
  4. DThird

Correct answer

A. Fifth

Step-by-step solution

Since the 3d3 d contains 3 electrons, thus the given elements is Vanadium, which is placed in 5th 5^{\text{th }} group and 4th 4^{\text{th }} period. The number of each period represents the number of energy levels that have electrons in them for atoms of each element in that period. The group number in the periodic table represents number of valence electrons of the elements in a certain group.
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