Question

The Valencies of the atom H,O,and N are 1,2and 3 respectively. The molecular formula of these gaseous elements are H2 ,O2 and N2 respectively. How many chemical bonds are there in each of these molecules

Answer 1

Answer:

H molecule has a single bond(one bond)

O molecule has Double bond( two bonds)

N molecule has Triple bond( three bonds)

Explanation:

: since H atom has one electron in its outermost shell and maximum amount it can have is two, so it make a single bond with another H atom. (H-H)

: O has 6 electrons in outermost shell and need 2 electron for Octat it bond with another O with their 2 electrons sharing with ear other.(O=O)

: N molecule has 5 electrons in outermost shell hence needs 3 electrons for octat completion. So it share its 3 electrons with another N atom and form triple bond.

For your information maximum number of electrons in outermost shell is 2, 8,8,18,18 and so on.