CHEMISTRY

Across

1. Study of compounds of carbon and hydrogen
5. An atomic model that has negative charged embedded in positive spheres.
6. Proposed an Atomic Theory with spherical solid atoms based upon measurable properties of mass.
7. Compound plus another compound
9. It is the result of the Stern and Gerlach experiment
10. It is how equilibrium is reached between the product and reactant
11. The degree of conformity of a measured or calculated quantity to its actual value.
12. A type of gas that is poisonous or bad smelling
13. Discovered the x-ray
14. The degree of which measurements or calculations will result in the same data.
15. Founder of modern chemistry
16. These molecules consists of two atoms of the same element.
17. He discovered that all elements have atomic weights
18. The electrons in an atom that are not valence electrons and therefore do not participate in bonding.
19. Simplest integer ratio of atoms present in a compound
22. Revealed the 3 types of radiation
25. Law of _______________ states that the amount of energy remains constant and energy is neither created nor destroyed.
30. The ______ principle states that, hypothetically, electrons orbiting one or more atoms fill the lowest available energy levels before filling higher levels.
31. An atomic model that states that atoms are hard and indestructible spheres.
33. The investigation of the changes in energy that occur during chemical reactions and phase transformation.
37. Gas to solid
39. Proposed a mechanical universe with small solid masses in motion.
41. Equal to the number of protons and equal to the number of electrons in an atom’s nucleus.
45. The ________ principle states that, in an atom or molecule, no two electrons can have the same four electronic quantum numbers.
46. Solid to gas
48. Energy that is in motion
51. The period between Iatrochemistry and Robert Boyles discovery of combustion
53. Negatively charged atoms.
54. _______ Law is also known as Amontons Law.
56. The elements found along the step like line between metals and non-metals of the periodic table.

Down

2. The spin of a positively charged atom.
3. Distribution of electrons in atoms and molecules
4. Study of chemical elements and their compound except the compounds of carbon.
8. _____ law is when the Volume and Pressure are inversely proportional with each other. And the temperature is at a constant rate.
9. It is the effects of electricity on chemical changes and interconversions of electric & chemical energy
10. He proposed that the explosion of hydrogen and oxygen produces water
14. The physical properties of matter
20. Discovered radioactivity
21. States the number and the type of atoms present in a molecule of a substance.
23. Said that matter is composed of small and indivisible particles.
24. What is the highest principal energy?
26. An atomic model made by Rutherford that states that the nucleus is almost the whole weight of the atom.
27. Also known as Medical Chemistry
28. It is called the basic language of chemistry.
29. Coined the term “Electrolysis” as a splitting of molecules with electricity.
32. Energy that is stored.
34. The capacity to do work
35. It undergoes changes and it occupies space and has a mass
36. Gas to liquid
38. ______ rule of maximum multiplicity is an observational rule which states electrons will occupy them singly before filling them in pairs.
40. The branch of science that is concern with the properties, composition and structure of substances.
42. ______ Law is a combination of the Boyles Law, Charles Law and Gay Lussacs Law.
43. He arranged the elements into 7 groups with similar properties.
44. Liquid to gas
47. Liquid to Solid
49. Poor conductors of electricity
50. Element plus another element
51. Positively charged atoms
52. Relationships between the pressure, volume and temperature of a sample ofgas could be obtained which would hold to a good approximation for all gases.
55. _______ law has a formula of “V1T2 = V2T1”