Question

Correct order of first ionization energy is
1) C>Si>Ge>Sn>pb
2) C>pb>Si>Ge>Sn
3) Si>C>Pb>Ge>Sn
4) C>Si>Ge>Pb>Sn​

Answer 1

Answer:

4) C > Si > Ge > Pb > Sn

would be the correct order of first ionization energy