What quantity is a scalar quantity?

A physical quantity which is described completely by its mangnitude only is called scalar quantity. lenght distance time and ares are example of scalar quantity

Explanation:

hope it helps

the atomic mass is the bottom number on the element.

-steel jelly

the seeing the electronic configuration we can say that the element is fluorine.

fluorine is the most electronegative element in the periodic table.

but by only seeing the configuration we cannot say about its reactivity because we don't know if its configuration after excitation or by addition of electrons.

but if not then, it is the lightest halogen and exists as a highly toxic pale yellow diatomic gas at standard conditions. as the most electronegative element, it is extremely reactive: almost all other elements, including some noble gases, form compounds with fluorine.