
Concept explainers
(a)
Interpretation:
Symbol of an atom that contains 5 protons and 6 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 25 protons and 30 neutrons has to be written.
Concept Introduction:
Refer part (a).
(c)
Interpretation:
Symbol of an atom that contains 14 protons and 14 neutrons has to be written.
Concept Introduction:
Refer part (a).

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Chapter 2 Solutions
Chemistry: Principles and Practice
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