An atom of x is twice heavier as one carbon 12 atom . calculate relative atomic mass of elements x

The atomic mass of one carbon 12 atom = 12 g/mol

Relative atomic mass of an element is the mass of one of its atoms relative to 1/12 the mass of one atom of carbon-12.

Relative atomic mass is given by the formula

= (Average mass of an atom ×12)/(mass of one atom of carbon-12)

From the question, x is twice heavier as one carbon 12 atom

∴ mass of x = 2 × 12 g/mol

mass of x = 24 g/mol

Then, the relative atomic mass of elements x is calculated thus

Hence, the relative atomic mass of elements x is 24.

(NOTE: Relative atomic mass is unitless)

Learn more on relative atomic mass here: link

12*2= 24

Mg 24 is twice heavier than carbon

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i think the answer is terrae but not 100 percent sure. ▓▬▬ §