PHYSICAL SCIENCE CHEMISTRY REVIEW #1

Front

All matter (daily) is made of ____.

Back

atoms

Front

All atoms have ____ part(s).

Back

3

Front

The center of all atoms has _____?

Back

a nucleus

Front

____ surround all atoms.

Back

electrons

Front

In atoms, protons have ____ charge; neutrons have ____ charge; and electrons have ____ charge.

Back

+ , 0 , -

Front

The 78 is the ____. It tells us the ____ in an atom of this element.

Back

atomic number , #protons and #electrons

Front

The 195.085 is the ____. When rounded to 195, it tells us the ____ in an atom of this element.

Back

mass number , #protons and #neutrons

Front

To find the average number of neutrons in an atom of this element we ____.

Back

add the atomic number and the mass number

Front

The average number of neutrons in an atom of this element is ___. HINT: #n = A - Z

Back

116

Front

Substances that are made of different types of atoms that are bonded together are ____.

Back

compounds