Question

How many valence electrons are present in this atom?

Ionization Energy

I 496

II 4562

III 6912

IV 9544

V 13353


One
Two
Three
Four

Answer 1

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