Question

write a note on ionisation energy of pblock elements
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Answer 1

Answer:

Ionization Energies of s- and p-Block Elements

Element I1 I2

*Inner-shell electron

P 1011.8 1907.4.4

S 999.6 2251.8

Cl 1251.2 2297.7

Answer 2

Answer:

It is the amount of energy required to remove the most loosely bound electron from the outermost shell of a neutral gaseous atom. It is measured in kJ mol–1 and is known as first ionization enthalpy. The first ionization enthalpy of the p-block elements generally increases on moving from left to right along a period.