CH-1174

Isotopes

Chemistry · Secondary 4 · Medium · Isotopes

A mixture of two isotopes of neon,

^{20}\text{Ne}

and

^{22}\text{Ne}

, has a relative atomic mass of 20.4. If the percentage of

^{22}\text{Ne}

is 20%, what is the percentage of

^{20}\text{Ne}

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