
Concept explainers
(a)
Interpretation:
Complete symbol for chlorine atom with 20 neutrons has to be given.
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:
Complete symbol for calcium atom with 20 neutrons has to be given.
Concept Introduction:
Refer part (a).

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Chapter 2 Solutions
Chemistry Principles And Practice
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