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sammy [17]
3 years ago
14

How many valence electrons are present in this atom?

Chemistry
1 answer:
Drupady [299]3 years ago
5 0

Answer:

This atom has 1 valence electron

Explanation:

Step 1: Data given

The ionization energy for the following element is:

I 496

II 4562

III 6912

IV 9544

V 13353

The element that has this ionization energy is sodium (Na)

Sodium has 11 electrons:

2 electrons on the first shell

8 electrons on the second shell

1 electron on the outer shell = 1 valence electron

This atom has 1 valence electron

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