Question

17/Three elements X, Y and Z have atomic numbers 7, 8 and 9 respectively.
(a) Arrange them in the decreasing order of their atomic radii.
(b) Which of the three is most electronegative ? Why?
(c) Write the formula of compound formed between
(i) X and Y
(ii) X and Z​

Answer 1

Answer:

a- x>y>z

b- z i.e; flourine is most electronegative

Answer 2

Answer:

Explanation:

A). 7 ,8, 9,

B) 9. Coz electro negativity increase across period.

C) 1) No2

2) NF