Answer:
Protons: 50, Neutrons: 75, Electrons: 50
Explanation:
The atomic number, which in this case is 50, determines the number of protons and electrons an atom has. Take the atomic number and subtract the number of protons to get the number of neutrons.
Liter is a metric unit for liquid volume
Answer:
the activation energy is 65-30
35
Answer: This means to find the number of neutrons you subtract the number of protons from the mass number.
The answer would be Rocks, metals, hydrogen compounds, hydrogen and helium, all in gaseous form.