Across
- 2. A set of chemical symbols showing the elements present in a compound and their relative proportions.
- 4. A substance that forms when atoms share electrons.
- 5. Anything that has mass and takes up space.
- 7. The number represents the number of proton in an atom.
- 10. The central core of an atom, consisting of protons and neutrons.
- 11. The science that deals with the composition, properties, reactions, and the structure of matter.
- 12. A subatomic particle that has a positive charge.
- 13. A type of bond that forms when electrons are transferred from one atom to another.
Down
- 1. A number that shows how many atoms are in a compound.
- 3. A subatomic particle that has a negative charge.
- 6. A pure substance made up of only one kind of atom.
- 7. The smallest basic unit of matter.
- 8. table An organized arrangement of elements according to their atomic number.
- 9. The number of protons and neutrons in the atom
- 11. Pure substances made of two or more kinds of atoms bound together.