Features of second period

What are periodic properties?

Atomic radius

Electron affinity

Minerals

(Atomic number 3 to 10) This is a short period. It contains eight elements (Lithium to Neon).

atomic radius, ionic radius, ionisation energy, electronegativity, electron affinity,

Atomic radius of an atom is defined as the distance between the centre of its nucleus and the outermost shell containing the valence electron.

Electron affinity is the amount of energy released when a gaseous atom gains an electron to form its anion.

A mineral may be a single compound or a complex mixture of various compounds of metals found in the Earth.