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Periodic Table Definitions and Electron Configurations Hydrogen Helium Lithium Beryllium Boron Carbon Nitrogen Oxygen Fluorine Neon Sodium Magnesium Aluminium Silicon Phosphorus Sulfur Chlorine Argon Potassium Calcium Scandium Titanium Vanadium Chromium Manganese Iron Cobalt Nickel Copper Zinc Gallium Germanium Arsenic Selenium Bromine Krypton Rubidium Strontium Yttrium Zirconium Niobium Molybdenum Technetium Ruthenium Rhodium Palladium Silver Cadmium Indium Tin Antimony Tellurium Iodine Xenon Caesium Barium Lanthanum Cerium Praseodymium Neodymium Promethium Samarium Europium Gadolinium Terbium Dysprosium Holmium Erbium Thulium Ytterbium Lutetium Hafnium Tantalum Tungsten Rhenium Osmium Iridium Platinum Gold Mercury Thallium Lead Bismuth Polonium Astatine Radon Francium Radium Actinium Thorium Protactinium Uranium Neptunium Plutonium Americium Curium Berkelium Californium Einsteinium Fermium Mendelevium Nobelium Lawrencium Rutherfordium Dubnium Seaborgium Hassium Bohrium Meitnerium Darmstadtium Roentgenium Copernicium Ununtrium Ununquadium Ununpentium Ununhexium Ununseptium Ununoctium Electron Configuration
Periodic Table Definitions and Electron Configurations

Definitions

1)    Atomic Radius half the distance between two adjacent atoms in a crystal or half the distance between nuclei of identical atoms bonded together.
 
2)    Electronegativity: a measure of the attraction of a nucleus for a bonded electron
 
3)    Family or Group: a vertical column on the periodic table
 
4)    Ionic Radius: the distance from the nucleus to the outer energy level of an ion
 
5)    Ionization Energy: the amount of energy needed to remove the most loosely bound electron from a neutral gaseous atom  
 
6)    Metal: element whose atoms lose electrons in chemical reactions to become positive ions (2/3 of the periodic table on the left hand side)
 
7)    Metalloid: an element that has both metallic and nonmetallic properties (on the staircase of the periodic table – exception Al)
 
8)    Noble Gas: a nonreactive element that is in group 18 on the periodic table
 
9)    Nonmetal:          element whose atoms will gain or share electrons in a chemical reaction (the right side of the periodic table)
 
10)                      Periodic Law: the properties of elements are periodic functions of their atomic numbers
 
11)                      Period: a horizontal row on the periodic table

 

 



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how do you figure out the atomic mass for an element?
October 24, 2011

When you are looking at the Periodic Table of Elements, the atomic mass is (usually) in the top left hand corner.  It is (usually) going to be a decimal due to isotopes.

October 25, 2011 -  Replied By Expert

 
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