Question

an element to 3rd period and 17th group of the periodic table find out A- the electronic configuration of elements on its left and right B-Day it's valence electrons C - it's size with in composition with the neighbouring element
c. Its size with in composition with neighboring elements

Answer 1

An element to 3rd period and 17th group of the periodic table.

(A).The electronic configuration of elements on its left and right.

Left - 2,8,6

Right-2,8,8

(B). It has 7 Valence electrons.

(C). Being on the right side of the periodic tabe its size is small and it is non metal.

Answer 2

Answer :-

Part A :-

From right it is 2,8,8

From left it is 2,8,6

Part B :-

It has 7 (seven) valence electron

Part C :-

It ts small and a non-metal