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Name the element in the third period (row) of the periodic table with:(a) 3 valence

Introductory Chemistry | 5th Edition | ISBN: 9780321910295 | Authors: Nivaldo J Tro ISBN: 9780321910295 34

Solution for problem 73P Chapter 9

Introductory Chemistry | 5th Edition

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Introductory Chemistry | 5th Edition | ISBN: 9780321910295 | Authors: Nivaldo J Tro

Introductory Chemistry | 5th Edition

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Problem 73P

PROBLEM 73P

Name the element in the third period (row) of the periodic table with:

(a) 3 valence electrons

(b) a total of four 3p electrons

(c) six 3p electrons

(d) two 3s electrons and no 3p electrons

Step-by-Step Solution:
Step 1 of 3

Solution 73P

Here, we are going to find out the name of the elements in the third period of the periodic table.

(a) 3 valence electrons

Valence electrons are those present in the outermost principal energy level.

Here, in the third period (row) of the periodic table, only Aluminium (Al) has three valence electrons.

(b) a total of four 3p electrons

Among all the elements in the third period (row) of the periodic table, Sulphur (S) has the electronic configuration [Ne]3s23p4

Therefore, Only Sulphur(S) has four 3p electrons.

(c) six 3p electrons

Among all the elements in the third period (row) of the periodic table, Argon (Ar) has the electronic configuration [Ne]3s23p6

Therefore, Only Argon (Ar)  has six 3p electrons.

(d) two 3s electrons and no 3p electrons

Among all the elements in the third period (row) of the periodic table, Magnesium (Mg) has the electronic configuration [Ne]3s23p0

Therefore, Only Magnesium (Mg)  has six two 3s electrons and no 3p electrons.

Step 2 of 3

Chapter 9, Problem 73P is Solved
Step 3 of 3

Textbook: Introductory Chemistry
Edition: 5
Author: Nivaldo J Tro
ISBN: 9780321910295

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Name the element in the third period (row) of the periodic table with:(a) 3 valence