27 Oct 2021
Problem 10a
Page 335
Section: Problems by Topic
Chapter 8: Periodic Properties of the Elements
Textbook ExpertVerified Tutor
27 Oct 2021
Given information
An element in the third period (row) of the periodic table with three valence electrons is given.
Step-by-step explanation
Step 1.
The period number is always the valence shell of the electronic configuration and the group number indicates the number of valence electrons. Therefore the electronic configuration of an element gives the idea about the group number and period number of the position of element in the periodic table.
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