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The number of elements present in the fo...

The number of elements present in the fourth period is

A

32

B

8

C

18

D

2

Text Solution

Verified by Experts

The correct Answer is:
C
The fourth period of modern periodic table starts with potassium (K, Z=19) and ends with krypton (Kr, Z=36). So the number elements of present in fourth period (ie, From 19 to 36) is 18.
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Knowledge Check

  • The number of elements present in 2nd, 3rd, 4th and 5th periods of modern periodic table respectively are

    A
    2, 8, 8 & 18
    B
    8, 8, 18 & 32
    C
    8, 8, 18 & 18
    D
    8, 18, 18 & 32

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