5. The order in which elements are arranged in a period of the Periodic Table depends upon
(a) their increasing number of neutrons.
(b) their increasing mass numbers.
(c) their increasing atomic numbers.
(d) their densities.
T-1-1-3



Answer :

Final answer:


Explanation:

The order in which elements are arranged in a period of the Periodic Table depends upon their increasing atomic numbers. The modern periodic table arranges elements in increasing order of their atomic numbers, grouping atoms with similar properties in the same vertical column.

Elements are organized in periods and groups on the periodic table according to their atomic number. A group is a column containing elements with similar properties, while a period is a row on the table.

The periodic table is an arrangement of elements in order of increasing atomic number, with elements that exhibit similar chemistry placed in vertical columns called groups.


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