New User Special Price Expires in

Let's log you in.

Sign in with Facebook


Don't have a StudySoup account? Create one here!


Create a StudySoup account

Be part of our community, it's free to join!

Sign up with Facebook


Create your account
By creating an account you agree to StudySoup's terms and conditions and privacy policy

Already have a StudySoup account? Login here

BIO 108 Chapter 2 Chemistry of Life

by: Taylor Notetaker

BIO 108 Chapter 2 Chemistry of Life BSC 108

Marketplace > University of Alabama - Tuscaloosa > Biology > BSC 108 > BIO 108 Chapter 2 Chemistry of Life
Taylor Notetaker
Troy University
GPA 3.8

Preview These Notes for FREE

Get a free preview of these Notes, just enter your email below.

Unlock Preview
Unlock Preview

Preview these materials now for free

Why put in your email? Get access to more of this material and other relevant free materials for your school

View Preview

About this Document

The rest of chapter two will be posted next week but this is for the most part chapter 2.
Introductory Biology for Non Majors
christine yates
Class Notes
Biology Chemistry of Life
25 ?




Popular in Introductory Biology for Non Majors

Popular in Biology

This 3 page Class Notes was uploaded by Taylor Notetaker on Thursday January 21, 2016. The Class Notes belongs to BSC 108 at University of Alabama - Tuscaloosa taught by christine yates in Spring 2016. Since its upload, it has received 22 views. For similar materials see Introductory Biology for Non Majors in Biology at University of Alabama - Tuscaloosa.


Reviews for BIO 108 Chapter 2 Chemistry of Life


Report this Material


What is Karma?


Karma is the currency of StudySoup.

You can buy or earn more Karma at anytime and redeem it for class notes, study guides, flashcards, and more!

Date Created: 01/21/16
Chapter 2 Chemistry of Life Elements and Atoms ● An element is a substance that can not be broken down into other substances by chemical reactions ( there are 92 naturally occurring elements and 113 in total) ● An atom is the smallest unit of an element (has all of its elements properties) Most Common Elements  1. Hydrogen­ H (makes up 9.5% of the body) 2. Carbon­ C (makes up 18.5% of the body) 3. Nitrogen­ N (makes up 3.3% of the body) 4. Oxygen­ O (makes up 65% of the body) 5. Phosphorus­ P 6. Sulfur­ S Other Elements  1. Sodium­ Na 2. Potassium­ K 3. Iron­Fe 4. Magnesium­ Mg 5. Calcium­ Ca 6. Chlorine­ Cl Trace Elements  ● They are essential for life  ● Ex) Iodine (with an iodine deficiency it can cause a goiter) ● Ex) Fluoride­ containing chemicals have been added to things like drinking  water and dental products. This trace element has caused a decline in cavities.  Some elements can be harmful to life  ● Ex) Cadmium­ a carcinogen that can be found in children’s toys Subatomic Particles in Atoms  1. Protons­ positive charge (atomic mass= 1 daton) 2. Neutrons­ no charge (atomic mass 1= daton) 3. Electrons­ negative charge (small in comparison to both the neutron and proton) Characteristics of Atoms ● Protons and neutrons are in the nucleus  ● Electrons may have different energy levels also known as shells  ● Atomic number­ the number of protons (this determines what element  something is) ● Atomic mass number (also known as atomic weight)­ is the number of protons and neutrons together  *In a neutral atom the number of electrons is equal to the number of protons Isotopes of an element contain different numbers of neutrons  ● Radioactive isotopes­ the nucleus decays, giving off particles and energy  bringing us nuclear power (which is the cleanest of energy) ● Ex of Radioactive isotopes)­ PET scan which is sometimes used in an attempt to  diagnose Alzheimer's disease  Energy 1. The capacity to work or make a change in matter 2. Potential energy­stored energy ex) batteries  3. Kinetic energy­ working energy (motion) this energy is released when bonds  holding together atoms are broken. Types of Bonds  1. Ionic­ the attraction between  positive and negative ions, they have moderate  strength, ex) table salt. (ions­ an atom with a charge, either gained or lost an electron) 2. Covalent­ the sharing of electrons between atoms, strongest of bond, ex) water  because H and O combine together  a. single bond­sharing one pair of electrons ex) H­O­H b. double bond­ the sharing of two pairs of electrons ex) ­C=C­       3. Hydrogen­ unequal sharing of electrons, weakest of the bonds, ex) water (electrons  spend more time near the oxygen atom.) Chemical Reactions ● reactants on the left  ● products on the right  Properties of Water  1. High heat of vaporization ex) sweating, panting, or transpiration 2. Ice Formation­ water freezes then expands floats due to the formation of a  crystalline structure  3. Cohesion and Adhesion­ Cohesion is what we know a surface tension. It’s the  attraction of like molecules. Adhesion is the attraction between different molecules  4. High Polarity­ water is a polar molecule, water molecules form hydrogen bonds  with one another and with other molecules (other information of this is under the  Hydrogen bond)  5. Solvent is a dissolving agent of a solution (water), Solution­ a liquid that is a  homogenous mixture of two or more substances (salt water), Solute­ a substance that is dissolved (salt)  


Buy Material

Are you sure you want to buy this material for

25 Karma

Buy Material

BOOM! Enjoy Your Free Notes!

We've added these Notes to your profile, click here to view them now.


You're already Subscribed!

Looks like you've already subscribed to StudySoup, you won't need to purchase another subscription to get this material. To access this material simply click 'View Full Document'

Why people love StudySoup

Jim McGreen Ohio University

"Knowing I can count on the Elite Notetaker in my class allows me to focus on what the professor is saying instead of just scribbling notes the whole time and falling behind."

Anthony Lee UC Santa Barbara

"I bought an awesome study guide, which helped me get an A in my Math 34B class this quarter!"

Bentley McCaw University of Florida

"I was shooting for a perfect 4.0 GPA this semester. Having StudySoup as a study aid was critical to helping me achieve my goal...and I nailed it!"


"Their 'Elite Notetakers' are making over $1,200/month in sales by creating high quality content that helps their classmates in a time of need."

Become an Elite Notetaker and start selling your notes online!

Refund Policy


All subscriptions to StudySoup are paid in full at the time of subscribing. To change your credit card information or to cancel your subscription, go to "Edit Settings". All credit card information will be available there. If you should decide to cancel your subscription, it will continue to be valid until the next payment period, as all payments for the current period were made in advance. For special circumstances, please email


StudySoup has more than 1 million course-specific study resources to help students study smarter. If you’re having trouble finding what you’re looking for, our customer support team can help you find what you need! Feel free to contact them here:

Recurring Subscriptions: If you have canceled your recurring subscription on the day of renewal and have not downloaded any documents, you may request a refund by submitting an email to

Satisfaction Guarantee: If you’re not satisfied with your subscription, you can contact us for further help. Contact must be made within 3 business days of your subscription purchase and your refund request will be subject for review.

Please Note: Refunds can never be provided more than 30 days after the initial purchase date regardless of your activity on the site.