What is the mass of 4.92×1021 platinum atoms?

1.593 grams is the mass of platinum atoms.

Explanation:

Where:

N = Number of particles / atoms/ molecules

n = Number of moles

m = mass of sample

M = Atomic mass

= Avogadro's number

We have:

Atoms of platinum  = N =

Moles of platinum = n =?

n = 0.008170 moles

Mass of N platinum atoms = m

Atomic mass of the platinum atom = m = 195 g/mol

1.593 grams is the mass of platinum atoms.

each chemical family is represented as a group or column on the periodic table. based on chemical properties, there are 6 types of chemical families. group 1 represents alkali metals, group 2 represents alkaline earth metals, groups 3 to 12 represent transition metals, groups 13 to 16 represent non-metals and other metals, group 17 represents halogens and group 18 represents noble gases.