Question

An atom of an element is represented as 39/19x ,write its:
(i) Number of protons.
(ii) Number of neutrons.
(iii) Electronic configuration.
(iv) Number of valence electrons..

Answer 1

Answer:

Number of protons

Explanation:

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Answer 2

Explanation:

1. No. of protons=19

2. No. of neutrons=20