Question

Distinguish between Isoto
Write electronic confiugration of following elements
a) Chlorine (Z = 17)
b) Calcium (Z = 20)​

Answer 1

Answer:

a) 2,8,7....{ Cl-}

b) 2,8,8,2 (Ca+2)

Explanation:

a) it's valency will be -1 becoz it needs 1 electron to form a stable electronic configuration (noble gases electronic configuration)

b) it's valency will be +2 becoz it contains 2extra electron ...to form a stable electronic configuration....{2,8,8,*2) last one is 2 so the valency is 2

if the last orbit contains 1,2or 3 electrons in it so it's a positive radicle

and if it' contains 5,6,7 electrons in it so it's a negative radicle

Answer 2

Answer:

Answers are the correct