Question

How is one element distinguished from another?

Answer 1

Answer:

Elements are distinguished from one another by their atomic numbers. The atomic numbers are the number of protons in the atomic nuclei of the atoms of the elements. No two elements have the same atomic number. It is the atomic number, and therefore the number of protons in its atomic nuclei, that define an element.

Answer 2

Explanation:

Elements are distinguished from one another by their atomic numbers. The atomic numbers are the number of protons in the atomic nuclei of the atoms of the elements. No two elements have the same atomic number. It is the atomic number, and therefore the number of protons in its atomic nuclei, that define an element.