Sofia Guagenti

2. - the name of the numbers above the materials on the periodic table.
7. - a positively charged ion.
8. - an element that wants to form a negative ion; is displayed on the right side of the periodic table.
11. - the number of protons in an atom of a given element.
12. - the amount one mole of an element weighs; atomic mass times 6.02*10^23
14. - a non-neutral charged atom.
15. - the diagonal strip on the periodic table where all of the metalloids are located.
16. - an element with properties of both metals and non-metals; is found just right of the metals on the periodic table.
17. - the name of the numbers on the left side of the materials on the periodic table.

1. - nonreactive substances with seven valence electrons.
3. - eight valence electrons; a full shell of electrons
4. - the electrons on the outermost shell of an atom.
5. - nonreactive substance with eight valence electrons.
6. - an element that wants to form a positive ion; is displayed on the left side of the periodic table.
9. - the weight of one atom of a particular element; the number of protons plus the number of neutrons in an atom.
10. - a way of showing very large or very small numbers using exponents.
12. - 6.02 x 10^12 atoms of a substance.
13. - a negatively charged ion.