Elements
Elements
A collection of the elements on one table
Periodic Table
The orbit that the electrons follow
Shells
Lustrous, Conductive, Malleable, Ductile
Metals
A neutraly charged atom
Neutron
The number of protons displayed in the periodic table
Atomic Number
The electrons found on the outermost shell of the atom
Valence Electrons
Dull, Insulative, Brittle
Non-metals
A positively charged atom
Proton
The number referring to the sum of protons and neutrons
Mass number
How do you figure out the number of shells using the periodic table?
Period
A mixture of metals and non-metals
Metalloids
A negatively charged atom
Electron
Horizontal row
Period
How do you figure out the number of valence electrons using the periodic table?
Group
Makes up majority of elements
Metals
The centre of the atom made up of protons and neutrons
Vertical Column
Group
The rule that atoms prefer to have 8 valence electrons for it to be stable
Octet Rule
What are the properties of a metalloid?
Conductive in certain conditions, brittle, lustrous