Which of the following numerical expressions gives the number of particles in 2.0 g of ne?

Explanation:

1 mole of any substance contains Avogadro number of particles i.e,  6.022 × 10^23 particles.number of of particles in n moles of a substance = n*Avogadro numbernumber of moles of Ne in 2.0 g of Ne= 2/20=0.1

[number of moles=given weight/ gram molecular weight]

so, number of particles in 2.0 g of Ne = number of particles in 0.1 moles of Ne= 0.1(6.022 × 10^23)

=

Pretty sure it's d. heterogeneous is separated by physical properties.