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Ionisation Energy

Nuclear charg...

Question

Nuclear charge refers to the effective positive charge of a nucleus. The nuclear charge of carbon is .

A

8

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B

4

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C

6

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D

2

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Solution

The correct option is C 6
The atomic number of carbon is 6, which means that it has 6 protons in the nucleus. Hence, the charge of the nucleus is +6.

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Similar questions

Q. Effective nuclear charge (

Z_{e f f}

) for a nucleus of an atom is defined as:

The nuclear charge actually experienced by an electron is termed as the effective nuclear charge. The effective nuclear charge Z* actually depends on the type of shell and orbital in which electron is actually present. The relative extent to which the various orbitals penetrate the electron clouds of other orbitals is

s > p > d > f

(for the same value of

n

The phenomenon in which penultimate shell electrons act as screen or shield in between nucleus and valence shell electrons and thereby reducing nuclear charge is known as shielding effect. The penultimate shell electrons repel the valence shell electron to keep them loosely held with the nucleus. It is thus evident that more is the shielding effect, lesser is the effective nuclear charge and lesser is the ionization energy.

Which of the following is not concerned with effective nuclear charge?

Q. Due to inter electronic repulsion, an electron experiences less nuclear charge. It is, therefore, said that inner electronic shells electrons shield the nucleus. The actual nuclear charge experienced by an electron is called effective nuclear charge. If the electrons in K-shell shields the nucleus to the extent of 0.5 (say) each. What will be the wave number of the spectral line arising out of n=4 to n = 2 transition in He atom?

If effective nuclear charge of F(Z=9) is X and effective nuclear charge of Li (Z=3) is Y then find the value of |X-Y|

Q. Nuclear charge of an atom is the negative charge on the nucleus of an atom.

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