Atomic Structure & Periodic Table Mania

An atom, as shown on the periodic table, is neutral because it contains equal numbers of

Carbon-13 and Carbon-14 are examples of _______________ for the carbon element.

Which of the following is an example of a homogeneous mixture?

How many neutrons does Rb contain?

A row on the periodic table is also called a ________.

Elements on the modern periodic table are arranged according to their _________.

Elements in group 18 are called ____________.

Oxygen has an atomic number of 8. How many total electrons does an oxygen ion (O^-2) contain?

Group 1 elements are also called ____________.

To become a cation, an atom must ___________ .

Who organized the first periodic table based the elements' atomic masses?

Which listing below shows the proper charges of the subatomic particles?

Which subatomic particles are located inside the nucelus of an atom?

Which of the following is an example of a heterogeneous mixture?

Valence electrons are located _________.

The sum of the number of protons and neutrons inside the nucleus is called the __________.

Elements that have chemical and physical properities of both metals and nonmetals are _____.

Magnesium has an atomic number of 12. How many total electrons would an ion of magnesium (Mg⁺²) contain?

The number of protons an atom contains is identified by the ____ on the periodic table.

A column on the periodic table can also be called a ________ .

To become a negative ion, an atom must ____________.