Which subatomic particle is electricity neutral and found in nucleus of an atom?

Astudent is working in the lab to determine how time affect impulse the student keeps the force the same in each row but changes impact the time some data is shown witch trial has the greatest a student is working in the lab to determine how time affect impulse the student keeps the fours the same in each row but change is the impact time some data shown witch trial has the greatest impulse

Which is the correct symbol for an isotope of iodine with 53 protons and 78 neutrons?

Find the mass by adding the numbers from the three sliders