Question

define electron afinity.

Answer 1

HY FRND ☺✌✋
THE ABILITY OF AN ATOM or ion to attract and retain extra ELECTRONs .
↪⚫GOR ANY element (A)= A+e↪A+energy .
↪✴The neutral atoms gains a negative charge after gaining an electron.
↪⚫Equals the energy change an atom experience after gaining an ELECTRON .
↪✴ELECTRON affinity values are EITHER be zero or nagative.
↪✴The more negative the value
$the \: more \: it \: becomes \: \: after \: gaining \: additional \: electrons \ example \: beryllium \: has \: an \: a \: electron \: affinity \: of \: 0 \: kj \:mol \: while \: fluorine \: hs \: a \: value \: of \: - 329kj \: mol$

Answer 2

Answer:

• Electron affinity is defined as the change in energy (in kJ/mole) of a neutral atom (in the gaseous phase) when an electron is added to the atom to form a negative ion. In other words, the neutral atom's likelihood of gaining an electron.