PDF chapter test TRY NOW
Write a short answer to the following questions in a few sentences:
1. Identify and name the metals out of the following elements whose electronic configurations are given below.
(a) 2, 8, 2 (b) 2, 8. 1
(c) 2.8. 7 (d) 2. 1
(a) 2, 8, 2 (b) 2, 8. 1
(c) 2.8. 7 (d) 2. 1
Metals are (a). , (b). Sodium and (d). as they have \(1\) to \(3\) valence electrons. Whereas, (c). is a non-metal.
2. Arrange the following elements in the increasing order of their metallic character: Mg, Ca, K, Ge, Ga.
is increasing order of metallic character. It is because '’ can lose electrons more easily due to its larger size whereas, ‘’ is the smallest and cannot lose electrons.
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