Chemistry Crossword

2. the distance between corresponding points on adjacent waves
4. is a pure substance that cannot be broken down into simper, stable substances
6. the smallest unit of an element that maintains the chemical identity of that element
7. a measure of the ability of an atom in a chemical compound to attract electrons
9. the minimum quantity of energy that can be lost or gained by an atom
12. the positively charged center of the atom consisting of protons and neutrons
14. an element that is a poor conductor of heat or electricity
16. a stable positively charged component of an atom
17. the vertical columns of the periodic table
20. a negatively charged ion
22. the number of waves that pass a given point in a specific time, usually one second
23. a three-dimensional region around the nucleus that indicates the probable location of an electron a stable negatively charged component of an atom
25. a substance that can be broken down into simple stable substances

1. the process that results in the formation of an ion
3. an element that has some characteristics of metals and nonmetals
5. an element that is a good electrical conductor and a good heat conductor
8. a positively charged ion
10. the particle in the atomic nucleus with a mass = 1 and charge = 0
11. a measure of the amount of matter
13. the elements of group 17
15. anything that has mass and takes up space
18. a particle of electromagnetic radiation having zero mass and carrying a quantum of energy
19. a neutral group of atoms that are held together by covalent bonds
21. the horizontal rows of elements in the periodic table
24. an atom or group of bonded atoms that has a positive or negative charge