Question

What is bond pair of electrons, plz tell the answer sir

Answer 1

Answer:

such as covalent and ionic bond in wich electrons are loosed and gained to become stable like noble gases

Answer 2

Ionic bonds -

in this type of bond, there is a transfer of valence electron from a metal to a non metal, accordingly. for example, take sodium (Na) and Chlorine (Cl).

electronic configuration of sodium - Na (2,8,1)

sodium has 1 valence electron

electronic configuration of chlorine - Cl (2,8,7)

chlorine has 7 valence electrons

now, to attain octet configuration, sodium must lose 1 electron (2 shells completely filled) and chlorine must gain 1 electron (3 shells completely filled).

So, sodium transfers 1 electron to chlorine and chlorine gains it. thus theres a transfer of electron from a metal to a non metal. this can also happen with other elements (with suitable conditions).

covalent bonds-

this type of bond involves sharing of electrons. for example, take 2 hydrogen atoms.

hydrogen has 1 electron in its valence shells and to attain octet it has to gain 1 electron. so, this hydrogen atom and another hydrogen atom shares their electrons.

(look fig)

now, both hydrogen atoms have attained octet rule.

covalent bonding has Single bond (in case of hydrogen), double bond (in case of oxygen) and triple bond (in case of nitrogen)

it also takes place in other elements with suitable conditions.

hope this helps