Most commonly in various forms of chemical bonding, particularly ionic. Also when a nucleus emits a negatively charged particle, forcing the atomic number to increase by 1.
when does a nucleus EVER emit a negative charge? lol ^
when an any atoms want to achieved a state of nearest an inert atom, its gain electron
Yea.
Gain of an electron transform the atom in an anion.Loss of an electron transform the atom in a cation.
They form an ionic compound.
Lose or gain an electron
No. A metallic atom will typically lose electrons.
Electron affinity is the energy released when an atom gains an electron to form a negative ion, while electron gain enthalpy is the enthalpy change accompanying the addition of an electron to a gaseous atom. Electron affinity is a specific term used in the context of forming an ion, while electron gain enthalpy is a general term for the enthalpy change associated with gaining an electron.
All elements in the 7th family/group (2nd from the right) on the Periodic Table.
The atom may gain or lose an electron either making it positive or negative.
A chlorine atom would gain one electron to become an ion because it tends to achieve a stable electron configuration by having a full outer shell of electrons.
Yes, that is part of the definition of electron affinity.
Atoms that gain extra electrons become negatively charged. A neutral chlorine atom.