Across
- 2. Smallest unit of any element
- 3. Anything that has mass and takes up space
- 5. Positive charge, same mass as neutron
- 7. Substances in which two or more elements have chemically combined.
- 8. A type of change where the size, shape, physical state or temperature changes without changing the chemical identity of the substance.
- 11. Matter that contains only one type of atom
- 17. This type of bond has electrons that are transferred from one atom to another. Both atoms will have a charge.
- 18. Chemical formulas on the right side of a chemical equation.
- 19. A mixture that is the same throughout and every sample looks exactly the same.
- 21. This type of bond occurs when electrons are shared by one or more pairs of electrons.
- 23. Chemical formulas on the left side of a chemical equation.
- 25. Basic unit of a compound
- 26. A chemical ________holds two atoms together
- 28. Negative charge, very small mass.
- 29. Atom or group of atoms with a positive or negative charge
Down
- 1. The thing doing the dissolving (Ex: water)
- 3. Substances that are mixed together but are not chemically combined and may be separated by physical means.
- 4. A mixture that has many different things mixed together.
- 6. A type of substance with all the basic units the same: Elements or Compounds are examples.
- 9. This type of particle is the smallest part of the atom
- 10. The thing being dissolved (Ex: salt)
- 12. No charge, same mass as proton
- 13. The study of the makeup, structure, and properties of substances and the changes that occur to them.
- 14. This type of electron is likely to be shared or transferred. Represented by a dot next to the symbol of the element.
- 15. A combination of symbols of the elements which makes up a compound known as a chemical ______.
- 16. Space occupied by a pair of electrons in an atom
- 18. Physical change in the visible structure of the material without changing the molecular or unit structure.
- 20. A method for diagramming shared electrons,____________ structure.
- 22. This type of compound contains chains or rings of carbon and usually also contain hydrogen or oxygen.
- 24. Abbreviation for the mass of 1 proton or 1 neutron.
- 27. Type of mass equal to the number of protons plus the number of neutrons in the atom.
- 30. The atomic ________ is equal to how many protons are in the nucleus of the atom.