Answer:
D: Electron - Negative Charge
Explanation:
Protons have a positive charge, (pro = +)
Neutrons have a negative charge, (neutral = 0
Electrons have a negative charge.
An element is determent by the number of protons in the atom, the Isotope of an element is determined by the number of neutrons, and the charge of an atom is determined by its electrons, which is equal to the number of protons.
From shortest wavelength to longest wavelength: ultraviolet ,visible light ,infrared
Answer:
acids or bases can be tested
by chemical indicators