chemistry Crossword

all Atoms, have equal numbers of protons and
Radioactive decay, the spontaneous breakdown of an atom's
physical constant, a quantity in nature that never
ground state, the lowest energy of a
spectroscopy, identifying chemicals by studying the light they
atom, the smallest unit of an element that maintains the properties of that
atomic number, the number of protons in the
isotope, atoms of the same element that have different
mass number, the total number of protons and neutrons in the
molar mass, the mass of one mol of the substance, written in
nuclide, a general term for any isotope of any
Thompson, discovered electrons and found that the electron has a very large charge for its tiny
cathode, the metal disk connected to the negative terminal of the voltage
democritus, thought the atom was the basic particle and
neutron, a neutrally charged
proton, a positively charged
electron, a negatively charged