If an atom or ion has an atomic number of 3, 2 electrons, and the electronic configuration is 2, what is the mass number?
1 answer:
It’s mass number would be 5 as it’s the protons and the neutrons added together
You might be interested in
What is “Polymerization” is your answer
The answer you are looking for is True
Answer:
third, fourth
Explanation:
I believe the answer is A.
The answer should be D all of the above