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The atomic number of chromium is 24 Its ...

The atomic number of chromium is `24` Its electronic coefigueration in ground state in `1s^(2) 2s^(2)2p^(6)3s^(2)4s^(1) 3d^(5)` .Chromium atom by using `3` electron from `Cr ^(2+)` .A chromium atom contain `17%` morte neutron than the proton. Now answer the following questions
The number of unopaired electron in `Cr ^(2+)`ion is

A

3

B

6

C

5

D

1

Text Solution

Verified by Experts

The correct Answer is:
A
`Cr^(3+),1s^(2)2s^(2)2p^(6)3s^(2)3p^(6)3d^(3)`.Three electrons in `3d` sub-shell are unpaired
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The atomic number of chromium is 24 Its electronic coefigueration in ground state in 1s^(2) 2s^(2)2p^(6)3s^(2)4s^(1) 3d^(5) .Chromium atom by using 3 electron from Cr ^(2+) .A chromium atom contain 17% morte neutron than the proton. Now answer the following questions The number of occupied sub- shell in Cr^(3+) ion is

The atomic number of chromium is 24 Its electronic coefigueration in ground state in 1s^(2) 2s^(2)2p^(6)3s^(2)4s^(1) 3d^(5) .Chromium atom by using 3 electron from Cr ^(2+) .A chromium atom contain 17% morte neutron than the proton. Now answer the following questions The electron atom can be respresentted by the symbol

The atomic number of chromium is 24 Its electronic coefigueration in ground state in 1s^(2) 2s^(2)2p^(6)3s^(2)4s^(1) 3d^(5) .Chromium atom by using 3 electron from Cr ^(2+) .A chromium atom contain 17% morte neutron than the proton. Now answer the following questions The number of electron having n = 3 and m_(1) = 0 in chromium atom is

The atomic number of chromium is 24 Its electronic coefigueration in ground state in 1s^(2) 2s^(2)2p^(6)3s^(2)4s^(1) 3d^(5) .Chromium atom by using 3 electron from Cr ^(2+) .A chromium atom contain 17% morte neutron than the proton. Now answer the following questions The group number and period of the chomium is the periodic table atom is

The element with electronic configuration of its atom 1s^(2).2s^(2).2p^(6).3s^(2).3d^(10).4s^(1) is

The electronic configuration of an element is 1s^(2)2s^(2)2p^(6)3s^(2)3p^(6)3d^(5)4s^(1) This represents its

The electronic configuration of an element is 1s^(2)2s^(2)2p^(6)3s^(2)3p^(6)3d^(5)4s^(1) .This represents its

The electronic configuration of given speices (X) is 1s^(2), 2s^(2)2p^(6), 3s^(2)3p^(6)3d^(5), 4s^(1) . This can be its

The outer electronic configuration of the ground state chromium atom is 3d^(2),4s^(2)

Knowledge Check

  • The atomic number of chromium is 24 Its electronic coefigueration in ground state in 1s^(2) 2s^(2)2p^(6)3s^(2)4s^(1) 3d^(5) .Chromium atom by using 3 electron from Cr ^(2+) .A chromium atom contain 17% morte neutron than the proton. Now answer the following questions The number of occupied sub- shell in Cr^(3+) ion is

    A
    3
    B
    4
    C
    5
    D
    6

  • The atomic number of chromium is 24 Its electronic coefigueration in ground state in 1s^(2) 2s^(2)2p^(6)3s^(2)4s^(1) 3d^(5) .Chromium atom by using 3 electron from Cr ^(2+) .A chromium atom contain 17% morte neutron than the proton. Now answer the following questions The electron atom can be respresentted by the symbol

    A
    `._(24)Cr^(50)`
    B
    `._(24)Cr^(32)`
    C
    `._(32)Cr^(24)`
    D
    `._(50)Cr^(24)`

  • The atomic number of chromium is 24 Its electronic coefigueration in ground state in 1s^(2) 2s^(2)2p^(6)3s^(2)4s^(1) 3d^(5) .Chromium atom by using 3 electron from Cr ^(2+) .A chromium atom contain 17% morte neutron than the proton. Now answer the following questions The number of electron having n = 3 and m_(1) = 0 in chromium atom is

    A
    2
    B
    5
    C
    4
    D
    1
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