Across
- 2. anything that has mass and takes up space ( ch.2, pg.24)
- 6. which energy results from the movement of charged particles.(pg.24)
- 7. the process of atomic decay is called? (pg.28)
- 9. reactions that occurs whenever chemical bonds are formed, rearranged, or broken pg.35
- 11. formed molecules that are electrically balanced pg.34
- 12. energy that is in action (pg.24-25)
- 14. The reactant taking up the transferred electrons is called the electron acceptor and is said to become? pg.36
- 15. the smallest unit of an element( ch.2, pg.25)
- 17. heterogeneous mixture of tiny particles that are dispersed in another medium(pg.29-30)
- 18. The substance present in the greatest amount is called? (pg.29-30)
- 21. this energy is directly involved in moving matter(pg.24)
- 22. subatomic particle in an atom that has a negative charge (ch.2 pg.25)
- 25. isotopes that exhibit radioactivity are called ( pg. 28)
- 26. a combination of two or more atoms held together by chemical bonds is called a ? (ch.2 pg.28)
- 29. in the reactions Smaller particles are bonded together to form larger, more complex molecules. pg.36
- 30. has a definite volume but they conform to the shape of their container(pg.24)
- 31. subatomic particle in an atom that has a neutral charge (ch.2 pg.25)
- 34. bonding that occurs between metals and non metals (pg.31-35)
- 35. elements with the outermost electron full are said to be chemically? (pg.31)
- 38. the fundamental unit used to measure the amount of substance.pg.29-30
- 40. an average of the relative weights of all the isotopes of an element, taking into account their relative abundance in nature.(pg.28)
- 42. substances composed of two or more components physically intermixed(pg.29-30)
- 47. if you increase me in a substance the kinetic energy also increases creating more collisions. pg.38
- 48. an electrically charged atom formed by the loss or gain of one or more electrons pg.32
- 49. atoms that have low electron attracting ability that they lose their valence electrons to other atoms are called (pg.34)
- 50. Reactions that release energy are called? pg.37
Down
- 1. any atom is equal to the number of protons in its nucleus (pg.27)
- 3. regions around the nucleus in which a given electron or electron pair is likely to be found pg.26
- 4. the ability to do work or put matter into motion (ch.2, pg.24)
- 5. stored energy, that has the potential, or capability, to do work but is not doing so(pg.24)
- 8. this type of energy travels in waves(pg.24)
- 10. type of bonding that involves sharing an electron (pg.31-35)
- 13. one of two or more atoms with the same atomic number but different number of neutrons (pg.27-28)
- 16. the power of an atom in a molecule to attract shared-pair electrons towards itself. (pg.34)
- 17. substances formed when two or more elements are chemically bonded together in a fixed ratio (pg.30)
- 18. Substances present in smaller amounts are called? (pg.29-30)
- 19. subatomic particle in an atom that has a positive charge ( ch.2 pg.25)
- 20. weak bonds formed between one hydrogen atom, already covalently linked to an electronegative atom, and another electronegative atom (pg.34-35)
- 23. has neither a definite shape or definite value (pg.24)
- 24. homogeneous mixtures of components that may be gases, liquids, or solids (pg.29-30)
- 27. in these reaction occurs when a molecule is broken down into smaller molecules pg.36
- 28. unique substances that cannot be broken down into simpler substances by ordinary chemical methods (pg.25 Ch.2)
- 32. substances that regulate and accelerate the rate of biochemical reactions pg.38
- 33. have definite shape or volume eg.bones(pg.24)
- 36. the sum of the masses of its protons and neutrons in the atom ( ch.2 pg.27)
- 37. Chemical reactions progress most rapidly and the chance of successful collisions is greater because of this factor. pg.38
- 39. form of energy stored in the bonds of chemical substances.(pg.24)
- 41. The reactant losing the electrons is referred to as the electron donor and is said to be? pg.36
- 43. heterogeneous mixtures with large, often visible solutes that tend to settle out(pg.29-30)
- 44. reactions that absorb energy are called? pg.37
- 45. in these reactions bonds are both made and broken pg.36
- 46. formed molecules that are unequally or not electrically balanced pg.34