1. Today fill in the blanks when the screen shows red and underlined words.

2. I. Atomic Structure (or what atoms are made of)

3. I. Atomic Structure Draw and color the diagram and Key below 4 Blue Protons 5 Yellow Neutrons 4 Red Electrons Nucleus Key 4 Be Beryllium 9

4. I. Atomic Structure A. Vocabulary 1. Atom – –basic building block of matter. 2. Nucleus – –the central part of an atom that consists of protons and usually neutrons Turn to your Glossary to letter “N”. Add the word “nucleus” and the page number of your “Atomic Structure Notes” page (probably page 35)

5. I. Atomic Structure A. Vocabulary 3. Proton – –a particle in the nucleus of an atom Turn to your Glossary to letter “P”. Add the word “proton” and the page number of your “Atomic Structure Notes” page (probably page 35)

6. I. Atomic Structure A. Vocabulary 4. Neutron – –a particle in all nuclei except the hydrogen nucleus Turn to your Glossary to letter “N”. Add the word “neutron” and the page number of your “Atomic Structure Notes” page (probably page 35)

7. I. Atomic Structure A. Vocabulary 5. Electron – –a particle that orbits a nucleus Turn to your Glossary to letter “E”. Add the word “electron” and the page number of your “Atomic Structure Notes” page (probably page 35)

8. I. Atomic Structure A. Vocabulary 6. Element – –A substance that consists of just one type of atom Turn to your Glossary to letter “E”. Add the word “element” and the page number of your “Atomic Structure Notes” page (probably page 35)

9. I. Atomic Structure A. Vocabulary 7. Atomic Number = number of protons 8. Atomic Number = number of electrons 9. Atomic Mass = number of protons plus neutrons 4 Be Beryllium 9

11. I. Atomic Structure A. Vocabulary Atomic Number Turn to your Glossary to letter “A”. Add the words “atomic number” and the page number of your “Atomic Structure Notes” page (probably page 35)

12. I. Atomic Structure A. Vocabulary Atomic Mass Turn to your Glossary to letter “A”. Add the words “atomic mass” and the page number of your “Atomic Structure Notes” page (probably page 35)

13. I.Atomic Structure B.Atom 1.Has a nucleus 2.Has electrons 3.Usually has neutrons (inside the nucleus)

14. I.Atomic Structure C.Nucleus 1.Has protons (red) 2.Usually has neutrons (white)

15. I.Atomic Structure D.Electrons 1.Tiny, very light particles 2.Have a negative electrical charge (-) 3. Move around the outside of the nucleus

16. I.Atomic Structure E.Protons 1.Larger and heavier than electrons 2.Have a positive charge (+) 3.In the nucleus of the atom

17. I.Atomic Structure F.Neutrons 1.Large and heavy like protons 2.Have no electrical charge 3.In the nucleus of the atom