1. Atoms Review

2. Oh no! I lost an electron Are you sure? I’m positive

3. A neutron walks into a restaurant and orders a couple of cokes. As she is about to leave, she asks the waiter how much she owes. The waiter replies, "For you, No Charge!!!"

4. 180 170 160 150 140130120 110100 90 80 7060504030 20 109876543 2 1 0 This screen will disappear in 3 minutes. Seconds Remaining. Describe the three kinds of particles found in atoms. Where are they located & what are their charges?

5. Protons – in the nucleus, positive charge Neutrons – in the nucleus, no charge Electrons – outside the nucleus, negative charge

6. 180 170 160 150 140130120 110100 90 80 7060504030 20 1098765432 1 0 You have Seconds left. Identify the four parts of the atom that are pointed out by arrows in the diagram above. Describe the electrical charges of the structures that are labeled 1, 2, and 3 in the diagram. 1 23

7. 1 is the electron and it is negative 2 is the proton and it is positive 3 is the neutron and it is neutral 4 is the nucleus

8. 180 170 160 150 140130120 110100 90 80 7060504030 20 1098765432 1 0 Seconds Left: A stable carbon atom has the following parts: – 6 protons – 6 neutrons – 6 electrons Describe the location of each of these parts in a carbon atom.

9. Protons and neutrons are found in the nucleus of the atom, at the very center. Electrons are found in an electron cloud that surrounds the nucleus.

10. 180 170 160 150 140130120 110100 90 80 7060504030 20 1098765432 1 0 Time left:Seconds Define these terms: Atom Ion

11. ATOM – the smallest part of matter that has the properties of the matter ION – an atom that has lost or gained electrons

12. 180 170 160 150 140130120 110100 90 80 7060504030 20 1098765432 1 0 SecondsRemaining: What are the biggest parts of an atom ?

13. Protons & Neutrons

14. 180 170 160 150 140130120 110100 90 80 7060504030 20 1098765432 1 0 Seconds Left: A stable helium atom contains 2 protons, 2 neutrons, and 2 electrons. Use beads and labels to create a diagram of a stable helium atom. Be sure to include the protons, neutrons, electrons, and nucleus of the atom in your diagram.

15. Electrons Protons Neutrons