Chemistry Midterm EXAM Review

Front

What is an atom?

Back

The smallest particle of an element that has the properties (features) of the element.

Front

What type of bond is present in H2O?

Back

Covalent Bond

Front

Which of the following is an element? A or B?

Back

A

Front

If an atom loses two electrons, what charge will it have?

Back

+ 2

Front

Do all chemical bonds involve two atoms sharing electrons?

Back

False

Front

What is a molecule?

Back

A group of two or more atoms bonded together.

Front

What is the difference between an ionic bond and a covalent bond?

Back

Ionic bonds involve the transfer of electrons, while covalent bonds involve the sharing of electrons.

Front

What is a compound?

Back

A substance formed when two or more different elements are chemically bonded together.

Front

What is the atomic number?

Back

The number of protons in the nucleus of an atom.

Front

What is the significance of the periodic table?

Back

It organizes elements based on their atomic number and properties.