Chemistry for Biology Students Part 1

 Food is a chemical substance made of atoms combines into molecules.

1. What are the very tiny building blocks of matter? Atoms?— 

2. Almost all of the mass of an atom is found in the (electron shells also called valences?) nucleus.

3. Carbon atom— One of the most important molecules in living things. (True or False)

4. The radius of a carbon atom is 70 trillionths of a meter. 

5. Protons have very little mass. (Electrons are small, but have a lot of mass) (T or F)

6. Charge is a fundamental property of certain particles like protons and electrons. (Charge is a fundamental property of certain particles like protons and neutrons.) (T or F) 

7. Like charges repel and unlike charges attract. (T or F)

8. The region where electrons are found are called orbitals, energy levels, and shells.

9. Uncharged atom— the number of protons and electrons is equal.

10. All atoms that have the same amount of protons are considered to be the same element. (T or False)

Bonus: 102 (90) elements are found naturally on Earth. About a dozen are artificially made in laboratories. T or F

Atomic Number— Number of protons

VOCABULARY WORDS
Reactive— very quick to interact with other elements