1. alpha particle
alpha particles are positively charged helium nuclei with weak penetrating power
Answer:
if its a neutral atom there should be 6 electrons because there are 6 protons
Explanation:
Answer a is the correct one
What do you mean by that? Can you explain further?
Answer: This is the definition if that's what you want.
Explanation:The law of conservation of mass or principle of mass conservation states that for any system closed to all transfers of matter and energy, the mass of the system must remain constant over time, as system's mass cannot change, so quantity can neither be added nor be removed.