Atomic Structure and the Periodic Table Crossword Puzzle
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QUESTIONS LIST:
- shell: a region of an atom that contains electrons. it's also known as an energy level.
- mass number: the total number of protons and neutrons in an atom.
- electron: a subatomic particle with a relative charge of -1.
- plum pudding: a theory of the atom as a ball of positive charge with electrons inside it.
- atomic number: the number of protons in the nucleus of an atom.
- isotope: a different atomic form of the same element, which has the same number of protons, but a different number of neutrons.
- proton: a subatomic particle with a relative charge of 1 and a relative mass of 1.
- nucleus: the central part of an atom, made up of protons and neutrons.
- relative atomic mass: the average mass of one atom of an element measured relative to the mass of one atom of carbon-12.
- ion: a charged particle formed when one or more electrons is lost or gained from an atom or molecule.
- neutron: a subatomic particle with a relative charge of 0 and a relative mass of 1.
