(a)
Interpretation:
The number of protons, neutrons and electrons in Ca-40 isotope of calcium needs to be determined.
Concept Introduction :
The
The sum of the number of neutrons and protons in the nucleus of an
(b)
Interpretation:
The atomic symbol of another isotope of calcium with 24 neutrons needs to be determined.
Concept Introduction :
The atomic number represents the number of electrons revolving round the nucleus in an atom. It also represents the number of protons in the nucleus of an atom.
The sum of the number of neutrons and protons in the nucleus of an atom represents mass number.
(c)
Interpretation:
The atomic symbol of an atom with atomic number 21 and neutrons 24 needs to be determined.
Concept Introduction :
The atomic number represents the number of electrons revolving round the nucleus in an atom. It also represents the number of protons in the nucleus of an atom.
The sum of the number of neutrons and protons in the nucleus of an atom represents mass number.
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Basic Chemistry
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