Question

Which wull be more reactive. an element x with atomic number 10 and an element Y with atomic number 17

Answer 1

Answer:element y

Explanation:

y has atomic no. 17 therefore it has 2,8,7 confrigation hence it has tendency to gain 1electron..

whereas X element has 2,8 confrigation...since its shell is filled .. so it dont have tendency to either loose or gain electron... (it is noble gas neon)