The Properties Chemistry

3. Contains two or more elements in a fixed ratio.
5. Can be measured and assigned a particular value.
7. Group 17 in the periodic table.
8. Sodium combined with chlorine.
14. The number of protons and electrons in an element.
16. Has 8 or 2 valence electrons and is.
19. May ignite if exposed to heat, sparks, friction, flames, or incompatible material.
20. The center of an atom containing protons and electrons.
22. The amount of space an object takes up.
24. Positively charged particles.
29. The liquid that you use to dissolve an object.
31. Has only 1 valence electron and are highly reactive.
32. Household safety symbols.
33. Easiness to be hammered into a sheet.
34. Workplace safety symbols.
37. The outermost electron.
39. Can be observed but not measured.
41. Hydrogen combined with two oxygens.
42. A compound combined with only non-metal elements.
43. Matter that contains 2 or more different types of pure substance.
45. The outermost energy level.
46. A mixed product that has more than 1 state.
47. Characteristic or features of a substance.
48. A particle that has no charge.

1. The abilities of a substance to react and form a new substance.
2. Easiness to be stretched into a wire.
4. Matter that contain 1 type of particle.
6. A negatively charged ion.
9. He was the first to create the atomic theory and he created the "Plum Pudding Model".
10. A shell where the electron resides.
11. The process of separating two types of particles using boiling points.
12. Two hydrogens combined with two oxygens.
13. A group of elements that chare electrons. Can be made from the same or different element.
15. A compound combined with both non-metal and metal elements.
17. Niels Bohr created this model. He suggested that energy levels surrounded the nucleus and the first 3 shells contain 2 electrons, then 8, then another 8.
18. Atoms of the same element that have different number of neutrons.
21. Materials which can cause or are suspected of causing long-term health effects.
23. Can dissolve metals, skin, etc, and can cause burn and serious eye damage.
25. How heavy an object is.
26. The ability of an object to dissolve in water.
27. A positively charged ion.
28. How closely compact an object is.
30. The object you dissolve in the liquid.
35. A mixed product that only has 1 state.
36. Cannot be broken down into a simpler substance.
38. Carbon combined with two oxygen.
40. An atom that has either removed or added valence electrons to become more stable.
44. Negatively charged particles.