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AP Chem P Table

Chapter 2

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
Created by: stellarxo