Fall Mid term Review

Front

What happens to the number of shells as you move down a group?

Back

They increase by 1.

Front

If a fire erupts during lab, what should you do immediately?

Back

Notify your teacher and get the fire blanket.

Front

What type of mixture is formed when oil and water separate in the same jar?

Back

A Heterogeneous mixture.

Front

Do all elements in the same row of the periodic table have the same number of shells?

Back

True.

Front

What is the name of the element with the atomic number 18?

Back

Argon.

Front

What is a Homogeneous mixture?

Back

A mixture that has a uniform composition throughout.

Front

What is a Heterogeneous mixture?

Back

A mixture that consists of visibly different substances or phases.

Front

What is the atomic number of Hydrogen?

Back

1.

Front

What is the significance of the periodic table's groups?

Back

Elements in the same group have similar chemical properties.

Front

What is the primary safety rule in a laboratory?

Back

Always follow your teacher's instructions.