Identify and name the metals out of the following elements whose electronic configurations are given below.a) 2,8,2 "" b] 2,8,""c] 2, 8, 7 "" d] 2,1

Identify and name the metals out of the following elements whose elect

1.	Identify and name the metals out of the following elements whose electronic configurations are given below.a) 2,8,2 "" b] 2,8,""c] 2, 8, 7 "" d] 2,1
Answer» Solution :ELEMENTS with 1 to 3 valence electrons are usually metals whereas elements with 4 or more valence electrons are usually non-metals or metalloids. From GIVEN electronic \CONFIGURATIONS, elements (a), (b), and (d), which have 2, 1, and I valence electrons respectively are metals. They are identified as: (a) 2, 8, 2 - Magnesium (12) (b) 2, 8, 1 - SODIUM (11) (c) 2, 1 - Lithium (3)