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Standard XII

Chemistry

Periodicity

An ion having...

Question

An ion having a 4+ charge and a mass of 51.99 amu has two electrons with n=1, eight electrons with n=2, and ten electrons with n=3. Give the total number of protons present in the nucleus of the atom of metal.

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Solution

The correct option is A 24
24
In $M^{4 +}$ ion total number of electrons=20
Electronic configuration= $\frac{1 s^{2}}{2} . \frac{2 s^{2} 2 p^{6}}{8} \frac{3 s^{2} 3 p^{6} 3 d^{2}}{10}$
Number of electrons in metal =number of protons=4+20=24

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Periodicity

Standard XII Chemistry

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An ion having a 4+ charge and a mass of 51.99 amu has two electrons with n=1, eight electrons with n=2, and ten electrons with n=3. Give the total number of protons present in the nucleus of the atom of metal.

The correct option is A 2424 In M4+ ion total number of electrons=20 Electronic configuration=1s22.2s22p683s23p63d210 Number of electrons in metal =number of protons=4+20=24

The correct option is A 24
24
In $M^{4 +}$ ion total number of electrons=20
Electronic configuration= $\frac{1 s^{2}}{2} . \frac{2 s^{2} 2 p^{6}}{8} \frac{3 s^{2} 3 p^{6} 3 d^{2}}{10}$
Number of electrons in metal =number of protons=4+20=24