Physical Science Review #1

5. Bond between a metal and a non-metal.
6. An element or a compound that always has the same composition.
7. Part of an atom that contains protons and neutrons.
9. Atoms will form bonds with other atoms in order to have eight valence electrons.
11. The substance that is dissolved in a solution.
13. phase change from a gas to a liquid.
15. Anything that has mass and takes up space.
19. Measure of the amount of matter in an object.
20. Substances that cannot be broken down into other substances chemically or physically.
22. Two or more elements that are combined chemically.
23. Formed between two atoms of the same element covalently bonded together. They cannot exist as lone atoms and must bond to something.
24. Any ability to produce a change in the composition of matter.
26. outside orbitals where electrons surround the nucleus.
27. Bond between two non-metals.

1. A change in the appearance of the substance without a change in the composition. Example: Dissolving salt in water.
2. A mixture without a uniform composition. Example: Cereal
3. phase change from a gas to a liquid.
4. A mixture with uniform composition. Example: apple Juice
8. The substance that does the dissolving in a solution.
10. A property that can be observed without changing the identity of the substance.
12. Columns of elements on the periodic table.
14. Occur when a substance reacts and forms one or more substances.
16. Phase change from a liquid to gas at the boiling point
17. Another word for a homogenous mixture.
18. indicates how many electrons are going to be lost or gained during bonding
21. Phase change from a iquid to gas at the boiling point
25. Horizontal row of elements on the periodic table.