An Atom of Helium Has a Mass About Four Times

question 103

Multiple Choice

An atom of helium has a mass about four times greater than that of an atom of hydrogen. Which choice makes the correct comparison of the redative numbers of helium and hydrogen atoms in equal masses of the two elements

• A) There are about four times as many helium atoms as hydrogen atoms.
• B) There are about two times as many helium atoms as hydrogen atoms.
• C) The number of helium and hydrogen atoms is the same.
• D) There are about half as many helium atoms as hydrogen atoms.
• E) There are about one-fourth as many helium atoms as hydrogen atoms.

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