Respuesta :
Answer: The number of protons and the number of neutrons determine an element's mass number.
Explanation:
Answer:
Protons and neutrons
Explanation:
The combined sum of protons and neutrons determine the mass
Answer: The number of protons and the number of neutrons determine an element's mass number.
Explanation:
Answer:
Protons and neutrons
Explanation:
The combined sum of protons and neutrons determine the mass