Questions with help 4 answer

Hydrogen chloride HCl (atomic numbers are 1 and 17 respectively)

H atomic number is 1, electronic arrangement is 1.

There is one electron in the outside shell.

Cl atomic number is 17, electronic arrangement is 2,8,7.

There are seven electrons in the outside shell.

Draw the chlorine atom with its seven outside shell electrons spread around it. Then draw the hydrogen atom next to it so that each atom can contribute one electron to the pair of electrons in the bond. 

Ammonia (NH₃) (atomic numbers are 7 and 1 respectively)

N atomic number is 7, electronic arrangement is 2,5.

There are five electrons in the outside shell.

H atomic number is 1, electronic arrangement is 1.

There is one electron in the outside shell.

Draw the nitrogen atom with its five outside shell electrons spread around it. Then draw the hydrogen atoms next to it so that each atom can contribute one electron to the pair of electrons in the bond. There is a lone pair of unbonded electrons on the nitrogen atom.