Which of the Following Compounds Is Likely to Occur as a Gas

question 27

Multiple Choice

Which of the following compounds is likely to occur as a gas at room temperature?

• A)CaF₂
• B)CH₄
• C)MgO
• D)FeCl₃
• E)LiF

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Definitions:

Half-Life

The time required for one half of the atoms of a radioactive substance to disintegrate into more stable materials.

Half-Life

The time required for half the quantity of a radioactive substance to undergo decay.

Half-Lives

The time required for half of the atoms in a radioactive sample to decay into other elements or isotopes.