PT Terms
Where do we find metals on the periodic table?
Left
What does the period number mean on the periodic table?
Number of shells
EDD of Magnesium atom
Mg
Formula for Calcium bromide
CaBr2
How do metals form ionic compounds with nonmetals?
By transferring electrons.
How many protons and electrons does Sulfur have?
16 and 16
What does the group number mean on the periodic table?
Number of valence electrons
EDD of Phophorus atom
P
Name K2O
Potassium oxide
What is the overall charge of an ionic compound?
Neutral.
What do we call elements along the staircase?
Metalloids
Potassium
Ionic symbol of calcium ion.
Ca 2+
Formula for aluminum phosphide
AlP
A positive ion is called _________, and a negative ion is called ________.
Cation, anion
What is the name of the family Cl, Br, I belong to?
Halogens
Group 5, Period 3
Phosphorus
EDD of Chloride ion
Cl
Name CaI2
Calcium iodide
Define electron affinity.
The tendency of an atom to attract electrons.
What is the name of the family Be, Mg, Ca belong to?
Alkaline earth metals
Period 3, Group 6
Sulfur
EDD of Aluminum Ion
Al
Formula for lithium oxide
LiO
This is a rule of thumb that states that atoms are most stable when surrounded by eight valence electrons.
Octect Rule.