The number of non-bonded electrons present on the central atom in the molecule of ammonia is ______.

Number of bond pairs of electrons present in the central atom of ammonia molecule is

The number of lone pair of electrons on the central atom of XeF_4 molecule is

The number of lone pairs of electrons present on the central atom of CIF_3 is

The number of lone pairs of electrons present in central atom of CIF_3 is:

The number of lone pairs of electrons present in central atom of ClF_3 is:

The number of electron pairs present in the valence shell of central atom in SF_6 molecule are

The number of lone pairs of electrons present in Central atom of ClF_3 is :

Number of bonded electrons in ethane molecule are

According to the octet rule, the number of electrons, in the valence shell of central atom of the molecule is___.