Question #5eca2

1 Answer
Nov 10, 2015

#3.01 × 10^23# atoms

Explanation:

The number of atoms\ions\molecules in one mole is "Avogadro's number" which equals #6.022 × 10^23#
so one half of a mole would be
#0.5 × 6.02 × 10^23 = 3.01 x 10^23# atoms