Chemistry Fall Final Exam Review

Front

What is the electron configuration for iron?

Back

1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d⁶

Front

What do isotopes of carbon have in common?

Back

They have the same atomic number and electrons.

Front

What does the term 'compound' refer to in chemistry?

Back

A compound is a substance formed when two or more elements are chemically bonded together.

Front

Is baking soda (NaHCO₃) a pure substance or a mixture?

Back

Baking soda is a pure substance.

Front

What are cations?

Back

Cations are positively charged ions.

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

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.

Front

What is a mixture?

Back

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

Front

What is the significance of the mass number?

Back

The mass number is the total number of protons and neutrons in an atom's nucleus.

Front

What are anions?

Back

Anions are negatively charged ions.