How Many Protons, Neutrons, and Electrons Does a Selenium Atom Have with a Charge of 2?

A selenium atom with a charge of +2 has 34 protons, 45 neutrons, and 32 electrons.

Here’s the explanation:

• Protons: Selenium has an atomic number of 34, which means it has 34 protons in its nucleus.
• Neutrons: The most common isotope of selenium is selenium-80, which has 45 neutrons (80 – 34 = 46, but since the charge is +2, it indicates the loss of 2 electrons, not affecting the number of neutrons).
• Electrons: In a neutral selenium atom, the number of electrons equals the number of protons, which is 34. However, with a +2 charge, the atom has lost 2 electrons, resulting in 32 electrons.