Download presentation
Presentation is loading. Please wait.
1
Biochemistry Chemistry of Life (2.1)
2
Element Chlorine (Cl)
3
Compound Sodium (Na) + Chlorine (Cl) salt (NaCl)
4
CHNOPS = Life
5
Atoms & Subatomic particles
6
Electron orbitals Electrons circling the nucleus
7
Ions Differing number of electrons
8
Atoms found on a Periodic Table See the energy levels of electrons?
9
Molecule: Same element
10
Molecule: Different elements
11
Periodic Table of Elements Atomic Mass is shown on the bottom of each square Atomic Number is shown in the upper left corner
12
Elemental Oxygen How many protons in Oxygenatoms
Elemental Oxygen How many protons in Oxygenatoms? How many neutrons in Oxygen atoms normally?
13
Isotopes Differing numbers of neutrons
14
Radioactive Isotopes
15
Potential Energy Energy of Position Which diver has more potential energy?
16
Potential “stored” energy of the electrons in the bond between Oxygen (O) and Hydrogen(H)
17
Kinetic Energy Energy of Movement
18
The “cloud” is created by moving (kinetic) electrons
19
Periodic Table of Elements Atomic Mass is shown on the bottom of each square Atomic Number is shown in the upper left corner
20
Period on a periodic table Period run horizontally, like sentences
21
Families on a periodic table Families run vertically, like columns
22
Covalent Bonds See the shared electrons between Carbon(C) and Hydrogen (H)?
23
Polar covalent bonding of water molecule See how each end(pole) has an electrical charge?
24
Structural Formula
25
Molecular Formula CH4 Methane gas 1 atom of Carbon &
4 atoms of Hydrogen
26
Ionic bonding See the electron being lost from Na and gained by Cl?
27
Ionic Compound Salt (NaCl)
28
Hydrogen Bonding See the positive Hydrogen (H) attracted to the negative Nitrogen (N)?
29
Chemical Reactions
Similar presentations
© 2025 SlidePlayer.com. Inc.
All rights reserved.