Question

The order of elements in the periodic table is based on

O the number of pratons in the nucleus.
O the number of neutrans in the nucleus
O atomic mass.
the electric charge of the nucleus.

Answer 1

The order of elements in the periodic table is based on the number of protons in the nucleus.

Explanation:This is also known as the atomic number of the element. Each element has a unique atomic number that defines its position in the periodic table. Please note that while atomic mass and the number of neutrons can vary among isotopes of an element, the number of protons (and hence the atomic number) remains constant for all atoms of a particular element.