If an isotope of an element has 33 neutrons and a mass number of 64, how many electrons must it have?

The isotope must have 31 electrons

Explanation:

the product of the pressure and volume is also constant

each chemical family is represented as a group or column on the periodic table. based on chemical properties, there are 6 types of chemical families. group 1 represents alkali metals, group 2 represents alkaline earth metals, groups 3 to 12 represent transition metals, groups 13 to 16 represent non-metals and other metals, group 17 represents halogens and group 18 represents noble gases.