There has only ever been one model/theory about the atom (TRUE OR FALSE)
False
Democritus and Aristotle
John Dalton
JJ Thompson
Robert Millikan
Ernest Rutherford
Neil's Bohr
In the modern periodic table, elements are arranged by _________
increasing atomic number (protons)
The top number in an element box represent the _____ ________
atomic number/protons
What is the name of group 1
Alkali metals
How many valence electrons does group 1 have?
1
What charge does a proton have? (positive, negative, neutral)
positive
Each row in the periodic table is called a _____
The bottom number of the element box represents the ____ ______
atomic mass
What is the name of group 2
The alkaline earth metals
2
What charge does a neutron have?
Neutral
Each column in the periodic table is called a _____
group or family
How many protons are in oxygen? 
8
What is the name of group 3-12
Transition metals
How many valence electrons does group 13 have?
3
negative
Elements in the same period have the same # of ____________ orbitals
energy
What is the atomic mass for potassium? 
39.098 or 39
What is the name of group 17
Halogens
How many valence electrons does group 14 have?
4
What are the three componets of an atom?
protons, neutrons, and electrons
Valence
What is the amount of protons in Sulfur? 
16
The noble gases
How many valance electrons does Krypton have?
8
Protons and neutrons are found in the _____ of an atom
Nucleus
The periodic table is broken up into three types of categories. What are they?
Metals, Nonmetals, metalloids
What is the name of the element with the symbol Zn?
Zinc
What is the name of the group that Sulfur is found in
The oxygen group
How many valence electrons does Phosphorus have?
5