Question

Explain the variation of ionization energy in a group and period ​

Answer 1

Answer:

Moving left to right within a period or upward within a group, the first ionization energy generally increases.Conversely, as one progresses down a group on the periodic table, the ionization energy will likely decrease since the valence electrons are farther away from the nucleus and experience greater shielding.

Answer 2

Answer:

Ionization energy or Ionization enthalpy of elements is defined as

the amount of energy required by an isolated gaseous atom to lose an electron in its ground state.

Losing of electrons results in cation formation.

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