Concept explainers
(a)
Interpretation:
Symbol of an atom that contains 7 protons and 8 neutrons has to be written.
Concept Introduction:
Each and every element present in the Periodic table has a unique name. Some of the elements are named considering their
Chemical names are represented as atomic symbols. In the symbols, the mass number and atomic number are shown. The complete
Atomic number is the total number of protons present in the atom of an element. Mass number is the total number of protons and neutrons present in nucleus of an atom.
(b)
Interpretation:
Symbol of an atom that contains 31 protons and 39 neutrons has to be written.
Concept Introduction:
Refer part (a).
(c)
Interpretation:
Symbol of an atom that contains 18 protons and 22 neutrons has to be written.
Concept Introduction:
Refer part (a).
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