The particles that make up an atom AND are involved in nuclear reactions are PROTONS AND NEUTRONS.
Answer:that answer is b
Explanation:
Answer:
c
Magnesium Ion
This is a Magnesium ion. There are 12 protons from the magnesium atom. There are 10 electrons because 12-2=10. There are 12 neutrons because 24-12=12
Answer: 4.5