Answer:
The mass of the atom, its atomic mass, depends upon the sum of the number of protons and the number of neutrons present in the nucleus. Since the properties of the electrons depend upon the number of protons in the nucleus of an atom, each different atomic number corresponds to a qualitatively different kind of atom.
Answer:
Electromagnetic waves
Explanation:
The description given is that of an electromagnetic wave.
Electromagnetic waves are propagated by the vibration of electrical and magnetic fields in a perpendicular direction to one another.
- These waves generally travel at the speed of light.
- They are made up of magnetic and electric fields.
- They do no require a material medium for their propagation
- They can pass through a vacuum.
It would be:
B. HCl
A metal will react with an acid to form a salt (MgCl2) and H2.