Multiple Choice
What charge will a sodium ion have when it loses one electron?
Table of contents
- 1. Intro to General Chemistry3h 48m
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2. Atoms & Elements
Ions
Struggling with General Chemistry?
Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
What charge will chlorine have when it gains one electron?
A
-1
B
0
C
-2
D
+1
Verified step by step guidance1
Identify the atomic number of chlorine, which is 17. This means chlorine has 17 protons and, in its neutral state, 17 electrons.
Understand that gaining an electron means adding a negative charge to the atom. Electrons have a negative charge.
When chlorine gains one electron, it will have 18 electrons but still only 17 protons.
Calculate the net charge by subtracting the number of protons from the number of electrons: 18 (electrons) - 17 (protons) = -1.
Conclude that when chlorine gains one electron, it becomes a chloride ion with a charge of -1.
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