Atoms
How do we know if an atom is an isotope?
An atom has 3 electrons, 5 protons, and 5 neutrons; what element is it
What is Boron?
What two particles weigh about 1 amu?
What is a proton and neutron?
An atom has 3 electrons, 5 protons, and 5 neutrons;Isotope or Ion?
Ion
What two particles of the atom are in the nucleus?
What is protons and neutrons?
What particle does not weigh anything (roughly)
What is an electron?