Which one of the following will have largest number of atoms? (a)1g Li (b) 1g Na (c) 1g Cl2 (d) 1g Au

By BYJU'S Exam Prep

Updated on: September 25th, 2023

1g Li has the largest number of atoms. Atoms refer to the smallest particles that are present in a chemical element. Out of all these options, a. 1g Li has the largest number of atoms in it. Atoms refer to the smallest part of a chemical element that are impossible to break down into further smaller particles chemically.

Table of content

1. Solution
2. What are Atoms?
3. Summary:
4. Which one of the following will have largest number of atoms?

Solution

To find out the largest number of atoms from the given options, we will follow the calculation provided below.

a. 1gLi=1/7mol

=1/7×6.02×10²³ atoms of Li

b. 1gAu = 1/197mol

=1/197×6.02×10²³ atoms of Au

c. 1gNa=1/23mol

=1/23×6.02×10²³ atoms of Na

d. 1gCl₂=1/71mol

=1/71×6.02×10²³

=2/71×6.02×10²³ atoms of Cl₂

Hence, 1g of Li consists of the most number of atoms.

What are Atoms?

Atoms are the smallest part of a chemical element. It is a substance that cannot be broken chemically. An atom is made up of three particles, these are, the nucleus which is the center of the atom, protons which are the positive particles and neutrons which are the negative particles.

An atom is also called the smallest unit of a chemical element. The parts of atoms are also known as sub-particles. Everything is made up of atoms. A nucleus of an atom has a positive charge always.

Summary: