Scientists Predict That Our Planet in Its Current Form Will

question 15

Multiple Choice

Scientists predict that our planet in its current form will exist for about another ____.

• A)5 billion years
• B)1 million years
• C)500 million years
• D)13 billion years

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Definitions:

Ionic Charges

The electrical charge that an atom acquires when it gains or loses electrons in the formation of an ionic compound.

Cation

A cation is a positively charged ion that results from the loss of one or more electrons by an atom.

Anion

A negatively charged ion, attracted to the anode during electrolysis, typically formed by the gain of electrons.

Anion

A negatively charged ion, which is formed when an atom gains one or more electrons.