Question

3 The periodic table contains a lot of information in it. With the help of that
information calculate the number neutrons present in the non-metallic elements of
the periodic table.
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Answer 1

Explanation:

The periodic table is the tabular arrangement of all the chemical elements on the basis of their respective atomic numbers. In the periodic table, the vertical columns are called ‘groups’ and the horizontal rows are called ‘periods’. The modern periodic table is based on the modern periodic law put forward by the English physicist Henry Moseley, which states that “the properties of elements are periodic functions of their atomic numbers”.