Chemistry, asked by pandue612, 1 month ago

PART-A
Instructions : (1) Answer all questions.
(2) Each question carries three marks.
(3) Answers should be brief and straight
and shall not exceed fwe simple sente
1. Write the electronic configuration of the following el
(a) Sodium(Na)
(b) Chromium(Cr)
(c) Copper(Cu)
2. Distinguish between oxidation number and valency.

Answers

Answered by chetanaaj88

2

Explanation:

the answer is in the above image

valency and oxidation number is in same points joined

there is where as in between each point

Please mark me as Branliast

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