Across
- 1. Anything that has mass and volume
- 3. Simplest type of pure substance
- 4. The center of an atom
- 6. Joining of two atomic nuclei of smaller mass to form a single nucleus of larger mass
- 7. Substance that does the dissolving in the solution
- 9. Chemical reaction in which two or more simple substances combine to form a new, more complex substance
- 10. The smallest part of an element that has all the properties of an element
- 14. Substance that appears to be the same throughout
- 15. Amount of time it takes for half of the atoms in a given sample of an element to decay
- 16. Number of protons in the nucleus of an atom
- 17. Combination of atoms formed by a covalent bond
- 18. Chemical reaction in which energy is released
- 20. Electron in the outermost energy level of an atom
- 21. A positively charged particle in the nucleus of an atom
- 22. amount of matter in an object
- 23. An atom that has become charged due to the loss or gain of electrons
- 25. Change of a gas to a liquid
- 26. Member of element Family 1 that has one valence electron
- 29. Chemical reaction in which different atoms in two different compounds replace each other
- 31. Process by which a substance becomes a new and different substance
- 33. Element that has properties of both metals and nonmetals
- 35. A neutral particle in the nucleus of an atom
- 37. Measure of the motion of molecules
- 38. Substance that enters into a chemical reaction
- 39. Chemical reaction in which energy is absorbed
- 41. Substance made up of molecules that contain more than one kind of atom; two or more elements chemically combined.
- 42. Member of Family 18 of the periodic table; elements have atoms with 8 valence electrons and unreactive
- 43. Bond that involves the sharing of electrons
- 44. Force acting over a distance to move an object
- 46. Homogeneous mixture of a few substances in a single physical state
- 48. Substance that is dissolved in a solution
Down
- 1. Matter that consists of two or more substance mixed; but not chemically combined
- 2. mass per unit volume
- 5. Bond that involves the transfer of electrons
- 8. factor being tested
- 11. A negatively charged particle found in an area outside the nucleus of an atom
- 12. Process by which a substance changes phase
- 13. Chemical reaction in which an uncombined element replaces an element that is part of a compound
- 16. rate of change in velocity
- 19. Opposition to the flow of electric charge
- 24. Amount of space an object takes up
- 27. Weighted average of the mass numbers of an element's naturally occurring isotopes
- 28. Tendency of objects to remain in motion or to stay at rest unless acted upon by an outside force
- 30. Vaporization that takes place at the surface of a liquid
- 32. Substance that does not appear to be the same throughout
- 34. Atom that has the same number of protons(atomic number) as another atom but a different number of neutrons
- 36. Substance produced by a chemical reaction
- 40. The ability to do work
- 45. Rate at which work is done or energy is used
- 47. A solution of two metals or a metal and a nonmetal that has the properties of a metal