Home
Class 9
CHEMISTRY
Explain why the addition of an electron ...

Explain why the addition of an electron to a neutral atom is associated with release of energy

Text Solution

Verified by Experts

(i) type of foces present between an added electron and neutral atom
(ii) the type of forces responsible for addition of electrons
(iii) energy changes involved when electrons are added
Promotional Banner

Similar Questions

Explore conceptually related problems

The amount of energy released when an electron is added to an isolated gaseous atom to produce a monovalent anion is called electron affinity of first electron affinity or electron gain enthalpy. The first electron affinity is given a negative sign as the addition of an electron to a neutral atom is an exoergic process. The addition of electron to A^(-) requires energy to overcome the force of repulsion. Thus, the second electron affinity is an endoergic process. The magnitude of electron affinity depends on a number of factors such as (i) atomic size (ii) effective nuclear charge (iii) screening effects (iv) half and fully filled orbitals and (v) shape of orbital. In general, electron affinity increase as the atomic radii decrease in a period. However, there are exceptions when the atoms have stable configuration. In a group, electron affinity decreases as the size increases. However, the members of 3rd period have somewhat higher values than the members in the 2nd period of the same subgroups. Which of the following has least electron affinity?

The number of electron in neutral atom of silicon is

Why are cations smaller than neutral atom?

ASSOCIATIVITY The addition of rational numbers is associative

Explain why the addition of hydrogen cyanided to carbonyl compounds is accelerated by bases and retarded by

The total energy of the electron in atom is

Energy of electron in a orbit of H -atom is

During the addition of second electron to oxygen, energy is ..........

The formation of positive and negative ions involve I.removal and addition of electrons from neutral atoms respectively II.ionisation enthalpy and electron gain enthalpy respectively choose the correct option