Atomic structure

The table shows the percentage abundance of the isotopes in a sample of magnesium:

Isotope	$24Mg^{24}\text{Mg}$	$25Mg^{25}\text{Mg}$	$26Mg^{26}\text{Mg}$
Percentage abundance (%)	79.0	10.0	11.0

Calculate the relative atomic mass of this sample of magnesium. Give your answer to one decimal place.

[2]

The table shows the percentage abundance of the isotopes in a sample of magnesium:

Isotope	$24Mg^{24}\text{Mg}$	$25Mg^{25}\text{Mg}$	$26Mg^{26}\text{Mg}$
Percentage abundance (%)	79.0	10.0	11.0

Calculate the relative atomic mass of this sample of magnesium. Give your answer to one decimal place.

[2]

Atomic structure Questions