Who proposed the nuclear model of the atom based on the gold foil experiment?

Which subatomic particle was discovered by J.J. Thomson?

Which scientist proposed that electrons orbit the nucleus in fixed energy levels?

What is the term for two or more different atomic nuclei with the same mass number but different atomic numbers?

What did John Dalton propose about atoms?

Which term describes elements with the same number of protons but different numbers of neutrons?

What is the term for a positively charged ion?

What is the name of the smallest unit of a compound that retains its chemical properties?

What is the term for a negatively charged ion?

Which term refers to an atom's tendency to attract shared electrons in a bond?

Which type of chemical formula shows the actual number of atoms of each element in a molecule?