The atomic number of barium is 56. what do you know about the subatomic particles in an atom of this element?

Basically, knowing that the atomic number is 56, and assuming that this a neutral atom of barium, it would have 56 protons and electrons. The number of neutrons can be determined by taking the mass number and subtracting it by the number of protons present.

4- c, because all matter stays the same no matter what. it is still there. 5- b, because matter is known as mass. 6-c because, flammability is a chemical property. malleability is changing the shape of an object.

C. control over the business