Question

..... elements placed on the right hand side of the periodic table r ????

Answer 1

smaller in size
lesser electropositive
higher electronegative
more non metallic

Answer 2

In a period as we move from left to right as electrons r added to same shell the electrons experience greater pull from the nucleus and hence the atomic size decreases and non metallic power increases....
Hence elements placed on right hand sidei.e.in p block are non metals ,metals and metalloids
Hope it helps