State whether the following statement is true or false:
The elements having a valency of $1$ are called monovalent.

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(TRUE) The statement is True.
Valency is defined as the combining capacity of an element.
Elements that have a valency of $1$ are referred to as monovalent elements (e.g.,$Na$,$Cl$,$H$).
Elements with a valency of $2$ are called divalent,and those with a valency of $3$ are called trivalent.

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