Chemistry

1. elements odorless, colorless, and have little chemical reactivity.
4. regions of space outside nucleus where electrons may exist.
5. atomic particle that moves around nucleus, carrying negative charge.
6. atomic particle found in nucleus with a positive charge.
7. atomic particle found in nucleus with a neutral charge.
8. number on periodic table that represents number of electrons in one atom of an element.
14. electrons in outer most orbital.
15. a reaction that occurs when a layer of metal is bonded to surface of another substance.
16. familly or column of elements on periodic table that share similar properties.
17. came up with law of Octaves to predict new elements.
21. substance you get after a reaction.
22. average mass of an atom of an element
24. substance you use to combine to make a reaction.
25. the smallest unit of an element, can exist alone or combined with others.
26. a combination of atoms bonded together. (Little lump)

2. matter can change form to form, mixtures separated or made, pure substances decomposed, but total amount of mass remains constant.
3. energy released.
9. positively charged center of atom.
10. elements that partially conduct electricity, and have properties between both metals and non-metals.
11. elements not malleable, not ductile, poor conductors, and are brittle.
12. row of elements on periodic table, atomic number increases left to right.
13. pure substance made of 2 or more different kinds of atoms bonded together, with new properties.
18. energy absorbed.
19. a pure substance that has only one kind of atom in it.
20. capital letter followed by one or more lowercase letters to represent an element.
23. elements that are usually solid, shiny, good electricity and heat conductors, malleable, and ductile.