What element has a 2+ charge when it has 54 electrons ?

The correct answer is Barium (Ba)

Explanation:

A neutral atom - without charge- has the same number of protons and electrons. The atomic number - that is, the number of protons - is the identity of the element.

If an atom has 2+ charge, it has lost 2 electrons. Since it has 54 electrons, the atomic number of the element is: 54 + 2 = 56.

From the Periodic Table, the element with atomic number 56 is Barium (Ba).

b) nuclear ive learned that in a pedtrodic table

b.false that your answer