Across
- 4. Elements that are a mix of the two other types of elements. in general these elements are solid, have a metallic luster, are brittle and semi conductive. Clue 2: One of these elements is very useful for making computers and electronics.
- 6. A number that refers to the mass of one atom relative to the mass of 1/12 of a carbon 12 atom. clue 2: It is generally equal to the amount of protons and neutrons in an atom.
- 9. A group of eight electrons that occupy a single shell in an atom.
- 10. The mass of 6.022x10^23 of a substance usually in grams.
- 13. An electron that is on the outermost energy level/shell of an atom.
- 14. Brittle elements that aren't very good conductors of heat.
- 15. An atom or molecule with a positive charge.
- 17. An atom or molecule with a negative charge.
Down
- 1. The name of a group of unreactive elements that all have full valence shells. clue 2: the elements in this group are all gasses.
- 2. On the periodic table, elements are organized into these, based on how many shells they have. clue 2: The name of the horizontal row on the periodic table.
- 3. The border that separates metals from nonmetals.
- 5. A form used for simplifying very large numbers into something like n*10^x
- 7. On the periodic table, elements are organized into these based on how many valence electrons they have. Clue 2: The name of the vertical columns on the periodic table.
- 8. The name of a group of highly reactive elements that have seven valence electrons.
- 11. The name for the number 6.02214076×10^23 clue 2: It is also the name of a certain mammal.
- 12. Usually shiny, malleable elements that are good conductors of electricity and heat. Clue 2: The majority of the elements on the periodic table are these.
- 16. An atom or molecule that has a net charge due to gaining or losing one or more electrons.