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Chapter 3 Vocabulary Puzzle

Across
The smallest particle of an element that retains the chemical properties of that element.
Law that states if two or more different compounds are composed of the same two elements then the ratio of the masses of the second element combined with a certain mass of the first element is always a ratio of small whole numbers.
Law that states mass is neither destroyed or created during ordinary chemical reactions or physical changes
Exactly 1/12 the mass of a carbon-12 atom
The mass of one mole of a pure substance.
A neutral particle located in the nucleus of an atom.
Down
Law that states a chemical compound contains the same elements in exactly the same proportions by mass regardless of the side of the sample or source of the compound.
The number of particles in exactly one mole of pure substance.
A negatively charged particle
A positively charged particle
The number of protons in the nucleus of each atom of that element.
Atoms of the same element that have different masses
The amount of substance that contains as many particles as there are atoms in exactly 12 g of carbon-12.