Question

An element X has the atomic number 17. Answer the following questions based on this.
a) Write its electronic configuration.
b) What is its valency?
c) Define valency.
d) Is it a metal or non-metal?
e) Write the name of element X

Answer 1

Answer:

a) Electronic Configuration - K=2,L=8,M=7

b) Valency = -1

c) Define valency = the combining power of an element

d) Non-metal

e) Chlorine

Explanation:

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