Question: How Do You Find The Largest Number Of Atoms?

2 Answers By Expert Tutors

Look up the atomic weight (in grams per mole) of each of these 5 elements, and divide the given mass of the element by its atomic weight.

That gives the number of moles of each element.

The one that gives the greatest number of moles has the greatest number of atoms.

Which of the following has highest no of atoms?

Which of the following has the largest number of atoms?

  • =3.0115×103cuatom.
  • =6.023×1021cuatoms.
  • =1.5×1023cuatom.
  • =9.48×1021cuatom.

How do you calculate the number of atoms?

To calculate the number of atoms in a sample, divide its weight in grams by the amu atomic mass from the periodic table, then multiply the result by Avogadro’s number: 6.02 x 10^23.

How do you find the number of atoms of an element in a compound?

To find the molar mass of a compound:

  1. Use the chemical formula to determine the number of each type of atom present in the compound.
  2. Multiply the atomic weight (from the periodic table) of each element by the number of atoms of that element present in the compound.

How many atoms are in MG?

Magnesium Oxide

Magnesium (Mg) is able to bond with one oxygen (O) atom. The formula of the compound is MgO. You can see in the dot structure that the two atoms share four different electrons. When a bond is made with four electrons, it is called a double bond.