Atomic Structure

1
Atomic Structure

• Matter has mass and volume
• Elementscannot be broken down chemically

2
P. 698
3
Atom

• Smallest part of element with all properties of
  element
• Nucleus 99 of atomic mass
• Protons
• Neutrons
• Electrons

4
(No Transcript)
5
(No Transcript)
6
Protons

• Positive charge
• All are identical
• Atomic Mass Unit (AMU)

7
Neutrons

• No charge
• All are identical
• Mass 1 AMU

8
Electrons

• Negative charge
• Mass 0.0006 AMU
• Electron Cloud
• Energy Levels (2, 8, 18)

9
(No Transcript)
10
Atomic Math

• 1. Atomic protons

11
2. electrons protons

• (neutral atom)

12
3. Mass protons neutrons
13
4. neutronsMass - Atomic
14
3 Li 6.941
15
11 Na 22.98