If the Relative Mass of a Hydrogen Atom Is 1/4

question 65

Multiple Choice

If the relative mass of a hydrogen atom is 1/4 that of a helium atom,how many hydrogen atoms would you need to equal the mass of four helium atoms?

• A)16
• B)4
• C)1/4
• D)25
• E)6.022 × 10²³

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