(a)
Interpretation:
The
Concept introduction;
Atomic number (Z):
Atomic number of an element is the number of protons found in the nucleus of every atom of that element.
Mass number (A):
Mass number of an element is defined as the total number of protons and neutrons in an atom.
Protons:
A proton is one of three main particles that make up the atom. Protons are a tiny, dense region at the center of the atom. Protons have a positive electrical charge of
Neutrons:
Atoms of all elements except for most atoms of hydrogen have neutrons in their nucleus. Unlike protons and electrons, which are electrically charged, neutrons have no charge they are electrically neutral.
Electrons:
Electrons have an electric charge of
(b)
Interpretation:
The atomic number, mass number, number of protons, the number of neutrons and the number of electrons in
Concept introduction;
Refer to part (a).
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