56
Barium has 56 electrons.
the answer is 28
A barium atom has two valence electrons.
A neutral barium atom has 56 electrons. This is because the atomic number of barium is 56, which corresponds to the number of electrons it has when it is electrically neutral.
Barium is monatomic so 56.
Barium has 0 unpaired electrons. It has a full outer shell of electrons, which is why it is a stable element.
There are 2 valence electrons in Barium.
Barium's atomic number is 56. Thus, an atom of barium has 56 protons in it. To keep it electrically neutral then, a barium atom must also have 56 electrons per atom.
Two.
Barium has 56 eletrons56 electrons and protons.
Barium 137 has 56 protons and 56 electrons.
Two electrons.