2
Its has 2 sets of lone pairs
linear
Two lone pair on the central selenium and three lone pairs on each chlorine. So total of eight lone pairs.
it is bent because it has two bonding pairs and 2 lone pairs
One
2
2
2
2
2
Its has 2 sets of lone pairs
There are 2 lone pairs in each Oxygen atom. So there are 4 lone pairs in total, which means 8 lone pair electrons.
Six lone pairs (2 on each O), and two ionic pairs on two separate -O- 's, binding to Mg2+ion.
There are 6 lone pairs as 3 lone pairs in either F atom.
There are four electrons, which is two pair.
Lone-pair electrons, Bonded pairs of electrons