Group Names
The first group of elements in the periodic table
What are Alkali Metals?
The one element that is a noble gas that does not appear in group 8a on the periodic table
What is Hydrogen?
The radius of alkali metals _________ by atomic number
What is increases?
The energy required to move an electron from an atom is called...
What Is Ionization Energy?
This scientist published the Triads System
Who is Doberiner?
The second group of elements on the periodic table
What is the Alkaline Earth Metals?
This shape divides nonmetals and metals on the periodic table
As the atomic number increases, so does...
What is Nuclear Energy?
Positive Ions are called
What are Cations?
This scientist published his periodic table in order of atomic mass
Who is Mendeleev?
The elements in group 7a
What are Halogens?
The representative elements are found in what groups
Atomic size decreases across a period in this order
What is left to right?
Negative ions are called
What are Anions?
The three classes of elements are
What are Metals, Nonmetals, and Metalloids?
The elements in group 8a
What are the Noble Gases?
Metals are found on what side of the stairstep
What is the left side?
What is Picometers?
An Ion is
What is an atom or group of atoms that have a positive or negative charge?
This category of elements touch the stairstep of the periodic table
What are Metalloids?
The name of the elements in group 6a
What are the Chalcogens?
Nonmetals are found on this side of the stairstep
What is the right side?
The properties of metalloids are _______ to metals and nonmetals
What is similar?
Positive and Negative Ions are formed by
What is the transfer of electrons between atoms?
True or false, Metals are poor conductors