Protons & neutrons.
Neutrons and protons.
Subatomic particles are the same size as basketballs.
The particles are closely packed together.
Atomic Mass units
Atomic Mass units =]
Technically all subatomic particles have mass. However, the electron is so small that it was once considered to have no mass. Wrong, both photons and gravitons are subatomic particles with no mass.
Protons plus the neutrons
All subatomic particles have mass.
protons and neutrons are subatomic particles and adding the two amounts together gives you the atomic mass unit
The total number of subatomic particles in the nucleus
Neutrons and Protons.
Two particles are considered. they are protons and nrutrons
These particles are protons and neutrons; but to be correct the mass of electrons must be added.
Protons, neutrons and electrons.
The electron has the smallest mass between subatomic particles: 9,10938291(40).10-31 kg.
Subatomic particles have mass, dimensions, spin, sometimes have an electrical charge.
The mass number is the sum of protons and neutrons in the atomic nucleus.
You think probably to mass number; the mass number is the sum of protons and neutrons.