Valence Electrons
Electrons in the outer most shell and used for bonding
Most reactive elements
Halogens and Alkali Metals
Covalent bond
How many valence electrons does Helium have
2
J.J. Thompson's model
The plum pudding model
How many bonds does Fluorine Form when it bonds with itself (F2)
1 (single bond)
Metals make up ____% of all metals
80
Bonding that occurs when electrons are transferred
Ionic Bond
How do you find the number of neutrons in an atom
Subtract the atomic number from the mass number
Original Four Elements
Earth air fire and water
How many bonds does Oxygen form when it bonds with itself (O2)
2 or a double bond
These elements have metallic and nonmetallic properties
Metalloids
Bonding that occurs between two metals
Metallic Bond
What are columns on the periodic table called
What did Johann Dobereiner discover
Periodicity
How many bonds does Nitrogen form when it bonds with itself
3 (triple bond)
These elements are poor conductors
Nonmetals
Water is polar or nonpolar
Polar
What are rows on the periodic table called
Rows
Element mentioned in the Bible (1 of 7)
Gold
Silver
Tin
Copper
Lead
Iron
Sulfur
What are the two exceptions to the octet rule?
Hydrogen and Helium
These elements do not react - they are used for creating a stable environment
Noble Gases
List 5 of the 7 diatomic elements
Hydrogen
Oxygen
Nitrogen
Chlorine
Fluorine
Bromine
Iodine
How many families are on the periodic table (not including the the "middle section"
8
What did Lavoisier study?
Combustion