1. Lesson 10: Elements, Color, and Energy

2. p+ and n are called NUCLEONS b/c they are in the nucleus.
Atoms are Made of...
Name of particle
charge
location
mass
size
electron -1
orbitals
Almost 0 amu
smaller
proton +1
nucleus
1 amu
bigger
neutron
p+ and n are called NUCLEONS b/c they are in the nucleus.

3. Elements are Made of...
one type of atom.

4. Scientists observed that when you burned difft elements, the flames were
difft color lights.
Flame Tests

5. Why?
To understand this let’s study light…

6. Light is a type of E Light Energy travels in waves Planck’s Theory
Shorter wavelengths have
higher frequencies
and higher Energy
Think like this, shorter waves at the beach move faster and have more E.

7. Ex. Which color has more E,
Blue or Red?
Blue b/c shorter waves ,
higher freq.
so, higher E

8. Photoelectric Effect Difft colors emit difft E
Shine Red light and no effect,
b/c red is low E
Shine Violet light and it glows!
b/c violet is hi E

9. Planck, again Objects can only emit or absorb fixed amts of E
E comes in “sizes”
Quantum

10. Einstein He calls “energy quantum” by a another name PHOTONS
To be continued…