Cu
copper
Ag
Silver
K
Potassium
Al
Aluminum
H
hydrogen
The three classes of elements are these.
What are metals, nonmetals, metalloids?
What is 3 electron?
Elements in the same group share these characteristic
What are chemical and physical properties?
The noble gases share this characteristic with regard to their atomic structure.
What are full electron orbitals?
The electrons in the outer energy level are called this.
What are valence electrons?
An element has an atomic mass of 34 and atomic number of 12, the number of neutrons.
What is 22 neutrons?
Mendeleev organized the elements of his periodic table according to this.
What is increasing atomic mass?
The reactive elements in group 2 are known as this.
What are alkali earth metals?
The vertical columns of the periodic table
groups/families
These metals are found in group 2
Alkali Earth metals
What is 74?
Group 18 elements are extremely nonreactive nonmetals known as this.
What are noble gases?
Extremely reactive elements in group 1 have only 1 valence electron and are known as this.
What are alkali metals?
The nonmental are found.
What is the right of the periodic table?
What is francium?
This class of elements have properties of both metals and nonmetals.
What are metalloids?
The first energy level/shell/orbital location is
What is closest to the nucleus?
The number of neutrons in a Sodium atom.
What is 12?
These metals contain familiar metals such as gold, iron, and copper
Transition metals
What is 8 electrons?