The mass number of the various atoms given above can be determined through the following means below
What is an atomic mass number?
An atomic mass number is defined as the amount of protons and neutrons that are found in the nucleus of an atom.
That is mass number= Proton + neutrons
The following features of atoms given above are calculated thus:
- Oxygen: Atomic number: 8, Atomic mass:15.999 Mass number: 16, Number of protons:8 Number of neutrons:Number of electrons:8
- Zinc: Atomic number:30, Atomic mass: 65.39, Mass number:65, Number of protons: 30, Number of neutrons:35, Number of electrons:30
- Lithium: Atomic number:3, Atomic mass:6.941 Mass number:7 Number of protons:3, Number of neutrons:4, Number of electrons:3
- Silicon: Atomic number:14, Atomic mass:28.086 Mass number: 28, Number of protons:14, Number of neutrons:14, Number of electrons:14
- Boron: Atomic number:5, Atomic mass:10.81, Mass number:10, Number of protons:5, Number of neutrons:5, Number of electrons:5.
- Argon: Atomic number: 18, Atomic mass:39.948, Mass number:40, Number of protons:18 Number of neutrons:22, Number of electrons:18.
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