Transcript Atomic Structure

Atomic Structure
Parts of an atom
Nucleus
Electrons
Electron Clouds
Electron Shells
Protons
Neutrons
Protons
3
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
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
Protons
How many protons does an atom of Oxygen have?
The number of Protons is always the
SAME as the atomic number
8
O
Oxygen
16.0
How many protons does an atom of Titanium have?
The number of Protons is always the
SAME as the atomic number
22
Ti
Titanium
47.9
Neutrons
Located in the nucleus
NO charge (nuetral)
Mass: 1 amu
0
0
Nucleus
0
Mass = 3 amu
Atomic Mass
0
Nucleus
+
0
2 Protons
2 Neutrons
+ ??
+
Neutrons
Mass 4.0
Protons
Atomic Mass = Protons + Neutrons
2
He
Helium
4.0
Atomic Mass
+
0
Nucleus
0
+
+ 0
0
+ 0
5 Protons
6 Neutrons
+ ??
0
Nuetrons
Mass 11
Protons
Atomic Mass = Protons + Neutrons
5
B
Boron
10.8
11
+
Atomic Mass
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?
How many neutrons must it have?
8
O
Oxygen
16.0
22
Ti
Titanium
47.9
48
Electrons
Located in the electron clouds
Negative Charge
Mass: 0 amu
Electron Clouds
Constantly moving
Electron Shells
-
-