Question

2. Deduce Each atom of protium has one

proton, no neutrons, and one electron. Each
atom of deuterium has one proton, two
neutrons, and one electron. Are these the
same or different elements? Why?

Answer 1

Yes they are.

A element is characterized by the number of protons it has. As the number of protons is the same, then deuterium and protium are the same element, Hydrogen.

Step-by-step explanation:

What you are seeing is the phenomenon of Isotopy. That happens, isotopy, every time that one atom has the same quantity of protons of another, but a different mass. That difference is caused by the number of neutrons, which variates.