CHEMAZING

2. anything that has mass and occupy volume
3. descries the direction if the electron spin
4. quantity of matter in a body
8. negatively charge particles
9. describes the orientation of the electron wave
10. refers to the estimated value taken from the device.
11. Li, Na, K, Rb, Cs, Fr
12. mass of a substance per unit volume
14. father of nuclear physics
17. group VII-A
18. atomic number 40
20. the study of the composition, structure, properties, and change of matter
23. positively charge particles
24. consists of positively-charge nucleus at the center and surrounded by an electron cloud.
25. the man behind the law of octave
27. prefix means million

1. force of attraction of the earth due to gravity
2. author of the modern periodic table
5. ratio of the density of a substance to the density of H20
6. the measurement of coldness or hotness
7. smallest exact value taken directly from the device.
9. prefix means millionth
12. he said that "all matter exhibits wave property"
13. a pure substance that cannot be broken down by chemical means
15. describes the shape of the electron wave
16. a pure substance formed by chemical means
19. smallest region of space where the probability of finding the electron is great
21. composed of more than one component
22. Cu, Ag, An
26. 2 quark down and 1 quark up