Question

element x has an electron configuration of 1s²2s²2p⁶3s¹, while element z has an electron configuration of 1s²2s²2p⁵. a) which element would have greater first ionization energy? b) which element would have a larger radius? c) which element would have higher electronegativity? d) which element would form an ion that has a larger radius? e) which element would release more energy when it gains an electron?

Answer 1

a) Element Z will have a greater ionisation energy because it's outer electron is in a sub-shell closer to it's nucleus

b) Element X

c) Element z is fluorine which has the highest electronegativity of all elements so it's z

d)Element X

e) I would guess X but im not sure