CROSSWORD PUZZLE

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2. also have diverse and unique properties
7. it is a spherical cloud that becomes has dense
8. has definite mass and volume
11. is a mixture of elements that has metallic properties
13. when it is positively charged
15. aircrafts, naval ships, body replacements (surgical implants), alloy
16. it is like a four leaf clover
17. the most important compound in the universe
21. non-corroding hard metal
22. using for equations relating bond energies
23. gain or less of electrons
24. regions in the space around the nucleus where electrons are found
26. are element that have the properties intermediate between metals and non metals
28. is a pure substance that is a combination of two or more elements
29. who built the table with the arranged in horizontal row
30. if all electrons in an atom are paired
32. tiny bundles of energy
33. are substances whose colors are affected by acids and bases
36. consist of 28 elements grouped in lanthanides and actinides
37. involved in the process of balancing fluid in the body
40. a negatively charged particle
42. used as electroplating
45. it is used for protection from nuclear disasters
47. has no net electric charge
48. A heavy, poisonous, metallic liquid used in some thermometers
49. soft lightweight metal
50. the smallest individual part of an element
52. is a charged atom or particle

1. high speed tool, catalyst, ceramics
3. states that electrons fill first the orbitals of the lowest energy
4. helps build strong bones
5. a branch of science that deals with the study of composition
6. exist as colorless,odorless and is common in the quohollan atmosphere
9. a fundamental part of the diet of humans
10. steel, batteries, railroad tracks, ceramics, glass (for color) gives amney stones their color
12. important in allowing us to digest our food properly
14. this is the gas that everyone needs for breathing
18. is used as a radiation source in cancer therapy
19. discovered radio activity
20. it is the atom that contained unpaired electrons
24. is a silvery white metallic element that reacts radily with atoms in the air
25. used to help physicians diagnose the disease or damage in the patients body
27. it is a dumbbell shaped cloud
31. bones/DNA, fertilizer, red match strike, weaponry/grenades
32. is a gas,not a positive or negative ion
34. used to express the measurement of an atom
35. consist of group 3A through group 8A
38. when it is negatively charged
39. is any learning technique that aids information retention.
41. is a bleaching agent in the manafacture of textile and paper
43. is a high temperature physical state of matter
44. an essential trace element for plants,animals and humans
46. has an electrical charge of positive one
51. it is the most important component of alloys