Question

Pretest: Unit 3

Question 16 of 32
Which element has a larger ionic radius than calcium (Ca)?
The Periodic Table
OA. Magnesium (Mg)
OB. Gallium (Ga)
OC. Sodium (Na)
M

Answer 1

Magnesium (Mg) has a larger ionic radius than calcium (Ca).

Step-by-step explanation:

The element that has a larger ionic radius than calcium (Ca) is

• Magnesium (Mg)

Ionic radius is the measure of the size of an ion. It is the distance from the nucleus to the outermost electron shell in an ion. Magnesium (Mg) is located one period below calcium (Ca) in the periodic table, which means it has an additional electron shell. As a result, magnesium (Mg) has a larger ionic radius than calcium (Ca).

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