Which pair of elements would you expect to exhibit the greatest similarity in their physical and chemical properties? Sr, Te Ga, As Rb, I N, P Ti, Ne

N and P will have similarity

Electronic configuration of N

2,5

1s²2s²p⁵

Electronic configuration of P

1s²2s²2p⁶3s²3p⁵

Electronic configuration bears similarity.

Both have 5 electrons in their outermost orbits. So they exhibit similarity in their properties. Both belong to the same 15 th group of periodic table.

Sr and Rb too bear much similarity. Both are strongly electro-positive metal, difference in their atomic no being only one.