Question

the mass of one atom of an element is 5.3 × 10 ^ -23
what is its atomic mass?
give the symbol of this element​

Answer 1

Explanation:

1mole of a element has avagadro number of atoms i.e 6.023×10^23

mass of 1mole of element = molar mass

given mass of one atom of the element = 5.3 × 10^-23

molar mass has 6.023×10^23 atoms

5.3×10^-23 is mass of 1 atom

molarmass = 6.023×10^23 × 5.3×10^-23

molarmass = 31.9 g