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AP Chem P Table
Chapter 2
Question | Answer |
---|---|
Antimony | Sb |
Tungsten | W |
Number of Neutrons | A - Z (mass - number of protons) |
Weighted Average | Sum of all isotope masses each multiplied by natural abundance |
Mercury (Hg) and Bromine (Br) | Only elements that are liquid under normal conditions |
Noble Gases | Gases at room temperature |
Differentiating Electron | The electron in a neutral element that makes it different from the previous element |
Isoelectronic | Atoms and ions that have identical electron configurations |
Allotrope | Elements that have multiple forms that are distinctly different from each other (i.e. carbon exists as graphite, diamond, buckminsterfullerene) |
List of Allotropes | Carbon, arsenic, oxygen, phosphorous, selenium, sulfur, tin |
Metalloids | Boron, silicon, germanium, arsenic, antimony, tellurium; become more metallic as you go down |
Metallic Character | Increases from top to bottom of a group; melting/boiling points decrease as you go down |
Non-metals | Metling/boiling points increase as you go down |
IE, EA, EN, atomic radii | increases to top right |
Cations vs. Anions | Cations lost e; anions gained e; cations are smaller, anions larger |