Question

the element whose atoms has mass of 10.86×10^-26kg is

Answer 1

Atomic mass of the atom = 10.86 x 6.023= 65.4 Therefore the metal is zinc.

Answer 2

Answer:An element with with this atomic mass is Zinc.

Explanation:

Mass of one atom = $10.86\times 10^{-26} kg=10.86\times 10^{-23} g$

In 1 mole = $N_A=6.022\times 10^{23} atoms$

Mass of $N_A$ numbers of atoms:

$6.022\times 10^{23} atoms\times 10.86\times 19^{-23} g=65.39 g$

The mass of 1 mole of this element = 65.39 g/mol

An element with with this atomic mass is Zinc.