Periodic Table

All periods on the periodic table contain the same number of elements

Group 2 is known as __

The symbol that indicates if an element is a liquid is a ___

Elements in the same ____ have similar properties

Elements that are all radioactive and mostly synthetic are called the

Group 1 is known as ___

The symbol that indicates if an element is a gas is the __

The number of protons is told by the _____

The symbol for Silver is __

The symbol that indicates if an element is a solid is a __

The symbol for Iron is __

Elements were arranged in order of increasing atomic mass on Mendeleev's periodic table

The symbol for Iodine is __

Electrons in the outer energy level are known as

Classify Helium

Group 17 is known as the ___

Elements within the same vertical column have similar but not identical

Group 18 is known as the __

The number at the top of each square of the periodic table is the

Elements that are man-made are called ____

The symbol for Tin is __

Classify Sulfur

The horizontal rows of elements in the periodic table are called

Groups 3-12 are known as ___

The scientist that created the first periodic table is

The mass number is ___

Elements to the left of the purple section of elements are called ____________

Isotopes of an element differ by the __

The number of valence electrons is determined by

Classify Nickel