BLACW-Periodic Table

3. The naturally occurring form for 7 specific elements consisting of paired atoms bonded together state (so called "BrINClHOF" elements).
5. A vertical column in the periodic table; elements here typically share similar chemical properties.
6. Highly reactive Group 1 elements, including lithium and sodium, that lose their one valence electron to form ions with a +1 charge..
7. A one, or two, letter shorthand abbreviation used to identify an element, such as "O" for oxygen or "Au" for gold.
10. Elements found in the center of the periodic table including common metals like copper, gold, silver, iron, and chromium.
11. Synonym for a "group" in the periodic table.
13. Elements with properties intermediate between metals and nonmetals, found along the "staircase" line in the periodic table.
16. Another name for the noble gases.
17. A pure substance consisting of only one type of atom that cannot be broken down by chemical means.
18. Elements found on the far right side of the periodic table that typically gain electrons to form negative ions or share electrons to bond covalently with each other.

1. A horizontal row in the periodic table representing the highest energy level of valence electrons in the included atoms.
2. Odorless, colorless Group 18 elements that are mostly unreactive due to a full valence shell of electrons.
4. The weighted mean of the masses of an element's isotopes.
8. An alternative name for Semi-metals.
9. Highly reactive Group 17 nonmetals, such as fluorine and chlorine, that tend to form anions with a -1 charge or bond covalently with other nonmetals.
12. Elements found on the left side of the periodic table that tend to form cations when reacted.
14. Group 2 elements that are somewhat reactive and form +2 cations.
15. The whole number value indicating the number of protons found in the nucleus and the elemental identity of an atom.