1. Warm-up 10/20/15
Which of Dalton’s 5 theories has been modified because today’s technological discoveries?

2. Warm-up 10/21/15 Who discovered the electron? What device did he use?
Thomson
CRT

3. Warm-up 10/22/15
What makes up atoms?

4. Warm-up 10/23/15
Identify the number of protons, neutrons and electrons in Bromine – 82.
p+ = 35
e- = 35
no = 47

5. Warm-up 10/26/15
Write the symbol notation for an element that has 16 protons, 18 electrons and 17 neutrons.
Write the symbol notation for an element that has 5 protons, 5 electrons and 6 neutrons.

6. Warm-up 10/27/15
Write the atomic symbol notation for an ion that has 8 protons, 10 electrons and 8 neutrons.

7. Warm-up 10/28/15
Write an equation for the alpha decay of Polonium – 211.
Write an equation for the beta decay of
Cesium – 135.

8. Warm-up 10/30/15
What is the difference between nuclear fission and fusion?
Fission is the process of splitting the nucleus.
Fusion is the process of combining smaller nuclei into one larger one.