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Maximum covalency of an element of atomi...

Maximum covalency of an element of atomic number 7 is

A

4

B

2

C

5

D

3

Text Solution

Verified by Experts

The correct Answer is:
A
The electronic configuration, of an element of aloinic number 7, is `1s^2" "2s^2" "2p_x^(1), 2p_y^(1), 2p_z^(1)`. Thus, the valency shell is second principal shell which has only four orbitals. Therefore, the element can form maximum of four covalent bonds. Thus, its covalency is 4.
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Knowledge Check

  • the maximum valency of an element with atomic number 7 is

    A
    `2`
    B
    `5`
    C
    `4`
    D
    `3`

  • An element with atomic number 21 is a

    A
    Transition elements
    B
    Alkali metal
    C
    Halogen
    D
    Representative element

  • The element with atomic numbers 19 is

    A
    Halogen
    B
    Chalcogen
    C
    Noble gas
    D
    An alkali metal

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