Created By : Rina Nayak

Reviewed By : Phani Ponnapalli

Last Updated : Apr 20, 2023

Atomic Mass of an Atom Calculator: The atomic mass of an atom calculator is a tool that calculates the atomic number and mass number based on the number of protons, neutrons, and electrons in an atom (or vice versa). In addition, the charge of ions with known numbers of protons and electrons can be defined. The definition of an atom, atom components, atomic mass number, as well as a short step-by-step instruction on how to use the calculator of the atomic mass of an atom, are all covered in this article.


What is Atom?

The atom is the smallest unit of matter that preserves an element's properties. An atom is made up of a nucleus and an electron cloud. The nucleus of an atom is made up of positively charged protons and electrically neutral neutrons, with negatively charged electrons surrounding the nucleus. Nucleons are made up of protons and neutrons.

Because they have an equal number of electrons and protons, atoms are electrically neutral. An atom with an uneven amount of protons and electrons, on the other hand, has an electrical charge and forms ions. Because it has more protons than electrons, a positively charged ion is called a cation. In comparison, an anion is a negatively charged ion with more electrons than electrons.

What is Atomic Mass?

The atomic mass of a chemical element is defined as the mass/weight of a single atom. Its mass is equal to that of three subatomic particles: proton, electron, and neutron. It is measured in unified atomic mass units, which are denoted by the letter "u." One atomic mass is equivalent to 1/12 of the mass of a single carbon -12 atom in general. The average mass of molecules and elements is calculated using atomic mass. It's also used to tackle challenges involving Stoichiometry.

How Do I Use the Atomic Mass of an Atom Calculator?

The following is the procedure how to use the atomic mass of an atom calculator

  • Step 1: In the input field, type the chemical formula.
  • Step 2: To acquire the result, click the "Calculate Atomic Mass of Atom" button.
  • Step 3: In the separate tab, the chemical formula's atomic mass will be displayed.

FAQs on Atomic Mass of an Atom

1. To determine the atomic mass, what average do you need?

Isotopes are variants of an element with various neutrons that have different masses. An element's average atomic mass is computed by adding the masses of its isotopes, each multiplied by its natural abundance on Earth.

2. What is the source of an atom's mass?

Protons, neutrons, and electrons are the particles that makeup atoms and are responsible for their mass and charge.

3. How do you calculate the mass of an atom?

To find out how many atoms are in a sample, divide its weight in grammes by the AMU atomic mass from the periodic table, then multiply by Avogadro's number: 6.02 x 10^23

4. How do atomic number and atomic mass number relate to one other?

The amount of neutrons and protons in an element's nucleus determines its atomic mass. The atomic number of an element is used to represent the number of protons in its nucleus.

5. Is atomic mass always proportional to atomic number?

The atomic number forms the base for the periodic table. As a result, the atomic number grows with each element. The mass of an atom is equal to the sum of its protons and neutrons. As the atomic number increases, the atomic mass increases as well.