Coordinates
1st Group : 4th Period
What is Potassium (K)?
The atomic number for Helium
What is 2?
The family of elements that contain the most reactive nonmetal: Fluorine
What are the Halogens?
One of the two most reactive families of elements
What are the Halogens?
or
What are the Alkali Metals?
The name of the chemist who organized the Periodic Table of Elements
Who is Dmitri Mendeleev?
2nd Group : 3rd Period
What is Magnesium (Mg)?
The atomic symbol for Oxygen
What is O?
The family of elements with 8 valence electrons (Unreactive)
The most reactive metal
What is Francium (Fr)?
These determine the reactivity of atoms
What are Valence Electrons?
13th Group : 4th Period
What is Gallium (Ga)?
The name of the element with the atomic symbol Na
What is Sodium?
The family of elements that is made up of Groups 3-12
As you move down and to the left on the periodic table, atomic radius __________
What is increases?
The location of metalloids, most nonmetals, and other metals (Groups #____ - #____)
What are Groups 13 - 16?
8th Group : 4th Period
What is Iron (Fe)?
The atomic symbol for Antimony
What is Sb?
The family of elements with 2 valence electrons
What are the Alkaline Earth Metals?
As you move down and to the left on the periodic table, electronegativity _________
What is decreases?
The names of the two rows of elements displayed beneath the Period Table
What are the Lanthanide Series and Actinide Series?
12th Group : 6th Period
What is Mercury (Hg)?
The atomic mass of Tungsten
What is 183.85?
The family of elements whose Group contains an outsider
What are the Alkali Metals? (Hydrogen is the outsider)
As you move down and to the left on the periodic table, electron affinity _________
How Mendeleev organized the Periodic Table to predict properties of unknown elements
What are similar properties of elements?