Atomic Structure Review

Front

What is the order of elements on the modern periodic table?

Back

Elements are arranged by increasing atomic number.

Front

True or False: The atomic number is the same as the number of neutrons in an atom.

Back

False. The atomic number is the number of protons, not neutrons.

Front

What is the charge of a proton?

Back

The charge of a proton is +1.

Front

What is the name of the isotope with 29 protons and 34 neutrons?

Back

Copper-63.

Front

What isotope is represented by 12 protons and 13 neutrons?

Back

Magnesium-25 (Mg-25).

Front

What is the atomic number of an element?

Back

The atomic number is the number of protons in the nucleus of an atom.

Front

How do you determine the number of neutrons in an atom?

Back

Subtract the atomic number from the mass number.

Front

What is the mass number of an atom?

Back

The mass number is the total number of protons and neutrons in the nucleus.

Front

What is the charge of a neutron?

Back

Neutrons have no charge; they are neutral.

Front

What is the relationship between atomic number and element identity?

Back

The atomic number uniquely identifies an element.