Q.

How many ionisation energies can carbon have? Electronic configuration of carbon 
in Ground state : 1s2 2s2 2px1 2py1
in Excited state : 1s2 2s1 2px1 2py1 2pz1.

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a

2

b

1

c

6

d

4

answer is D.

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Detailed Solution

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Number of ionization energies possible for an element = Number of electrons present in it.

Hence, carbon has '6'  Ionization energies.

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How many ionisation energies can carbon have? Electronic configuration of carbon in Ground state : 1s2 2s2 2px1 2py1in Excited state : 1s2 2s1 2px1 2py1 2pz1.