What is the odd one out and why?

k- potassium
na - sodium
li- lithium
ca - calcium
mg- magnesium
al- aluminium
c- carbon
zn - zinc
fe - iron
pb - lead
cu- copper
ag -silver
au-gold

Complete the sentences to best explain the ranking.match the words below to the appropriate blanks in the sentences.a less polar bondhigher molar massion-dipole forcesstronger intermolecular forcesdipole-dipole forcesdispersion forceshydrogen bonding1. h2s and h2se exhibit the following intermolecular forces:.2. therefore, when comparing h2s and h2se the one with a has a higher boiling point .3. the strongest intermolecular force exhibited by h2o is . therefore, when comparing h2se and h2o the one with has a higher boiling point.