Question

How
is
atomic


mass
calculated?​

Answer 1

Explanation:

For any given isotope, the sum of the numbers of protons and neutrons in the nucleus is called the mass number. This is because each proton and each neutron weigh one atomic mass unit (amu). By adding together the number of protons and neutrons and multiplying by 1 amu, you can calculate the mass of the atom.

Answer 2

Answer:

There are three ways to calculate the atomic mass, depending on the circumstances of each.

1. By referring to the periodic table

In the periodic table digit of an atomic mass usually marked under the representation of an element. For example

Hydrogen (H) atomic mass -1

Lithium (Li) atomic mass -3

Periodic Table of Elements

Periodic Table

2. Addition Of Mass Of Protons and Neutrons

In an element atomic mass of an atom can be calculated by adding the mass of protons and neutrons.

3. All Atoms of an Element – Weighted Average

3. Weight average of an element

The weighted average of the isotopes of each element grounded in nature by their abundance is the atomic weight of an element. One can calculate the atomic mass of the element with these tips. A list of isotopes with natural abundance and mass is given either as a percentage or decimal value. Each isotopes-abundance is multiplied by its mass. If isotope abundance is present their solution should be divided by 100 and add these values.

The solution means the atomic mass of the specific element. the atomic mass unit can be related with the other mass unit by using the conversion factor.1u = 1.66054 X 10-24g.

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