1. Atomic Structure

2. Parts of an atom Nucleus Electron Clouds Electron Shells Electrons
Protons
Neutrons

3. Protons The number of Protons is always the SAME as the atomic number3 Li
Lithium
Located in the nucleus
Positive Charge +
Mass: 1 amu + +
Nucleus +
The number of Protons is always the SAME as the atomic number
Mass = 3 amu

4. Protons The atomic number is 6 Carbon has 6 protons
How many protons does an atom of Carbon have?
The atomic number is 6
Carbon has 6 protons 6 C
Carbon
12.0
The number of Protons is always the SAME as the atomic number

5. Protons The number of Protons is always the SAME as the atomic number
How many protons does an atom of Oxygen have?
How many protons does an atom of Titanium have? 8 O
Oxygen
16.0
The number of Protons is always the SAME as the atomic number 22 Ti
Titanium
47.9
The number of Protons is always the SAME as the atomic number

6. Neutrons Located in the nucleus NO charge (nuetral) Mass: 1 amu
Nucleus
Mass = 3 amu

7. Atomic Mass + Nucleus + 2 Protons + ?? Neutrons Mass 4.0 2 Neutrons+
Nucleus +
2 Protons
+ ?? Neutrons
Mass 4.0 2
Neutrons
Protons 2 He
Helium
4.0
Atomic Mass = Protons + Neutrons

8. Atomic Mass Atomic Mass = Protons + Neutrons + + + Nucleus + ++
Nucleus + +
5 Protons
+ ?? Neutrons
Mass 11 6
Nuetrons
Protons 5 B
Boron
10.8 11
Atomic Mass = Protons + Neutrons

9. Atomic Mass How many protons does Oxygen have?8 O
Oxygen
16.0
How many protons does Oxygen have?
What is the atomic Mass of Oxygen?
How many neutrons must it have?
How many protons does Titanium have?
What is the atomic mass of Titanium? 22 Ti
Titanium
47.9 48

10. Electrons Located in the electron clouds Negative Charge Mass: 0 amu
Constantly moving -
Electron Clouds
Electron Shells - -