Question

write Short notes on
lonisation enthalpy
Electeronegativity​

Answer 1

Ionization energies measure the tendency of a neutral atom to resist the loss of electrons. It takes a considerable amount of energy, for example, to remove an electron from a neutral fluorine atom to form a positively charged ion. Ionization enthalpy of an element can be defined as the amount of energy required to remove an electron from an isolated gaseous atom in its gaseous state. Conceptually, ionization energy is the opposite of electronegativity. The lower this energy is, the more readily the atom becomes a cation. Therefore, the higher this energy is, the more unlikely it is the atom becomes a cation. Ionization energy: the energy required to remove an electron from a neutral atom. ... Electronegativity: the ability of an atom in a molecule to draw bonding electrons to itself.

Answer 2

Answer:

the amount of energy required to egect an electron from the outer most shell of a gaseous atom e.g.

Na ---> Na+. + e- ∆i H

on top to bottom in a grp ionisation enthalpy enthalpy decreases

from left to right in a period ionisation enthalpy increases ...