Chemical bondings

3. Force that results when electrons are freely moving in its place
5. said to be smallest particle of an element and its neutral
7. compounds results from reaction between metal and halogen
8. Force that exist among nonmetals
10. hey can gain three electrons to form fairly unstable ions with a three minus charge
11. about 1.2 percent of human body, Commercially, this element is important for fertilizer and energy carrying molecules formation
14. formed by most metals during chemical reaction
16. 3 dimensional shape of a compounds where its atoms arranged in a 3 dimensions
19. Diagram that represent the outermost energy level electrons
20. This group is the first one to consist of entirely non-metals
22. Number of electrons lost , or gained or even shared in outermost energy level
23. forms four covalent bonds in compounds rather than form monatomic ions.

1. Transition metal that used in computer ships manufacturing
2. Force due to losing or gaining electrons
4. Trivalent atom that do not rust
6. This group has six valence electrons
9. Formed by non metals during chemical reaction
12. Dense mass in an atom where weight found
13. is by far the most abundant element in the earth's crust (49.5 percent), and is present in almost everything.
15. the second most abundant element in the earth's crust (25.7 percent)
17. In general very unreactive chemically since it is difficult to add or remove electrons.
18. Charged atom
21. comprises about 3 percent of the weight of the human body and used as fertilizers