Question

Can someone help me​

Answer 1

Explanation:

(a) chlorine will resemble the properties that of the element 9

same group= same properties

(b) element 9 is more electronegative than chlorine

in group of non metals elements at the top are more electronegative than while going down the group in non metals

Hope it helps,

Plzzzzz mark it as brainliest

Answer 2

Answer:

a) 9 because it refers to same group

b) 9 it is florin which is the highest electronegative element