Notice that all elements sharing the same column have the same number of valence electrons*. (e.g. Boron [B] has three valance electrons just like Aluminum [Al] does. Nitrogen [N] has five valance electrons just like Phosphorous [P] does.)

Notice as well that all elements sharing the same row occupy the same number of electron energy levels (e.g. Lithium [Li] has electrons in the first two energy levels just like Flourine [F] does. Magnesium [Mg] has electrons in all three energy levels just like Sulfur [S] does.)

*Although Helium [He] has two valance electrons, it is commonly placed in the far-right column because its outermost energy level is full, just like Neon [Ne] and Argon [Ar].

​Enzymes bind to specific substrates. The substrate fits into the enzyme at a location on the enzyme called the active site.

For starters, here is the study guide:

• Quizlet Study Guide - Water & Organic Compounds (Chapters 2-2 & 2-3)

​​Here is a screen-shot of the in-class review:

Here are the online lessons:

• Chapter 2-2 Properties of Water
• ​Chapter 2-3 Carbon Compounds

Don't forget your notes:

• Chapter 2-2 Properties of Water
• Chapter 2-3 Carbon Compounds

Here are copies of notes provided by your peers:​

• Chapter 2-2 Properties of Water
  
• Chapter 2-3 Carbon Compounds

Here is a previous blog entry:

• #BioDub Polar Solubility Art: Polar vs. Nonpolar

​HERE is a blank copy of the Organic Molecules Graphic Organizer

Play the Kahoot! HERE

Unit 2: Chemistry of Life

In each of the photos below, the students drew a picture or wrote out a quote/phrase in black permanent marker. Once the ink dried, they traced over their drawing or words in Crayola Magic Marker. Once that ink dried, they dripped water (a polar solvent) on the left-hand side of the paper and rubbing alcohol (a non-polar solvent) on the right-hand side. It can be seen that the Magic Marker ink dissolved in the water and not so much in the alcohol because it is a polar ink. As well, it can be seen that the permanent ink dissolved in alcohol and not in the water because it is a non-polar ink. Polar solvents will only dissolve polar solutes while non-polar solvents will only dissolve non-polar solutes.

​For starters, here is the study guide:

• Quizlet Study Guide - Atoms. Elements, & Compounds (Chapter 2-1)​​

​Here is a screen-shot of the in-class review:

Here is the online lesson:

• ​Chapter 2-1 Nature of Matter

Don't forget your notes:

• Chapter 2-1 Nature of Matter

Here are copies of notes provided by your peers:​

• Chapter 2-1 Nature of Matter

Here is a previous blog entry:

• ​#BioDub Solutions to Isotopes Practice Problems & Homework
• #BioDub Videos - How Small is an Atom?
  
• #BioDub Video - Covalent vs. Ionic Bonds

Play the Kahoot! HERE
​
Unit 2: Chemistry of Life

For starters, here is the study guide:

• Quizlet Study Guide - Chemical Reactions & Enzymes (Chapters 2-4)

​Here is a screen-shot of the in-class review (TBA):

Here is the online lesson:

• ​Chapter 2-4 Chemical Reactions & Enzymes

Don't forget your notes:

• Chapter 2-4 Chemical Reactions & Enzymes

Here are previous blog entries:

• #BioDub Lactose Intolerance Video
• #BioDub My GIF to You - Enzyme Reactions
  
• ​#BioDub Enzyme/Substrate : Wrench/Nut & Bolt Analogy