Review for Mid Term Exam December 2024

Front

On which side of the periodic table are nonmetals located?

Back

Nonmetals are located on the right side of the periodic table.

Front

What is the atomic number of an element?

Back

The atomic number of an element is the number of protons in its nucleus.

Front

What is a chemical bond?

Back

A chemical bond is a lasting attraction between atoms that enables the formation of chemical compounds.

Front

What is the difference between an element and a compound?

Back

An element is a pure substance made of only one type of atom, while a compound is made of two or more different types of atoms chemically bonded together.

Front

What is the law of conservation of mass?

Back

The law of conservation of mass states that mass is neither created nor destroyed in a chemical reaction.

Front

What is a mixture?

Back

A mixture is a combination of two or more substances that are not chemically bonded.

Front

What are the three states of matter?

Back

The three states of matter are solid, liquid, and gas.

Front

What is an atom?

Back

An atom is the smallest unit of an element that retains the properties of that element.

Front

What is a molecule?

Back

A molecule is a group of two or more atoms bonded together.

Front

What is the periodic table?

Back

The periodic table is a tabular arrangement of elements organized by increasing atomic number.