Mass Number of Elements
As we have already learned that Mass Number of an Element is the sum total of the number of protons and neutrons. Mass Number of elements is denoted by the letter ‘A’. Let’s learn the mass number of some elements.
Mass Number of Hydrogen
Hydrogen is the very first element in the modern periodic table. Hydrogen is the most abundant element found in the universe. Hydrogen is denoted by the letter ‘H’. The atomic number of Hydrogen is 1. It means it has one proton. But it has no neutrons. Hence, the mass number of hydrogen is 1.
Mass Number of Lithium
Lithium is the first element of the second period in the modern periodic table. The Atomic Number of Lithium is 3. The number of neutrons present in Lithium is 4. Hence, the Mass Number of Lithium is 7.
Mass Number of Carbon
Carbon is one of the most important in the periodic table. It is the main element found in any organic compound. The atomic carbon of Carbon is 6, hence the number of protons in carbon is 6. The number of neutrons in carbon is 6. Hence the mass number of Carbon is 12.
Mass Number of Nitrogen
Nitrogen is the most abundant gas found in the atmosphere. Nitrogen is denoted by the letter ‘N’. The atomic number of Nitrogen is 7. Hence, the number of protons in Nitrogen is 7. The number of neutrons in Nitrogen is also 7. Thus, the Mass Number of Nitrogen is 14.
Mass Number of Oxygen
Oxygen is an important non-metallic element. Oxygen supports life and combustion. Oxygen is denoted by the letter ‘O’. The atomic number of oxygen is 8. Hence, it has 8 protons. Oxygen has also 8 neutrons, hence the mass number of Oxygen is 16.
Mass Number
Mass Number of an atom is the total number of protons and neutrons present in an atom. We know that an atom consists of electrons, protons, and neutrons but the mass of the atom is contributed by protons and neutrons as the mass of electrons is very low hence it doesn’t contribute to the mass of an atom. In this article, we will learn what is the mass number, the mass number definition, the mass number formula, and the mass number of some commonly known elements.