Define the term atomic number, mass number and electrons
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Answer:
atomic number
the number of protons in the nucleus of an atom, which is characteristic of a chemical element and determines its place in the periodic table.
mass number
the total number of protons and neutrons in a nucleus.
electrons
Electrons are the subatomic particles that orbit the nucleus of an atom. They are generally negative in charge and are much smaller than the nucleus of the atom.
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Mass number .
The mass number (symbol A, from the German word Atomgewicht (atomic weight), also called atomic mass number or nucleon number, is the total number of protons and neutrons (together known as nucleons) in an atomic nucleus. It determines the atomic mass of atoms.
Atomic number:
the number of protons in the nucleus of an atom, which is characteristic of a chemical element and determines its place in the periodic table.
Electrons:
The electron is a subatomic particle, symbol e⁻ or β⁻ , whose electric charge is negative one elementary charge. Electrons belong to the first generation of the lepton particle family, and are generally thought to be elementary particles because they have no known components or substructure
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