Limited time offer 20% OFF StudySoup Subscription details

BYU-I - BIO 264 - BIO 264 Week 2 Notes - Class Notes

Created by: Josie Lee Gubler Elite Notetaker

> > > > BYU-I - BIO 264 - BIO 264 Week 2 Notes - Class Notes

BYU-I - BIO 264 - BIO 264 Week 2 Notes - Class Notes

This preview shows pages 1 - 2 of a 6 page document. to view the rest of the content
background image Day 4  No School MLK Day Day 5  Truth: The Foundations of Correct Decisions Elder Scott Ion- whenever there is an unequal number of protons and electrons 
Cation – positive ions, more protons than electrons
Anion- negative ions, more electrons than protons 
Na is usually a cation because it will give away it’s one electron to become 
stable so it is drawn as Na+
Ionic Bonds- bond of ions, positive and negative - usually pairing between 
group 1 & 7, 2&7 because group 1 wants to get rid of an electron and group 
7 needs one
Groups 1 & 2 will get rid of electrons instead of gaining them  Mg2+I2
Atomic Number- Number of Protons  Mass number – number of  protons  + neutrons  Carbon12 – 12 =  + N; N = 6  Carbon14 – 14 =  6  + N; N = 8  Isotope – same number of protons and different number of neutrons  Valence electrons are the outer most shell  Atomic Mass- is the average weight of the element in the universe, it is the 
number at the bottom of the square on the periodic table 
Day 6 
 Ionic Bonds 
- always requires a cation and an anion
- Unequal number of protons and electrons
- Disassociates in water
- Can transfer electrons (gives it away and doesn’t want it back)
background image Anion – Negative charge (Cl-) 
Cation – Positive chare (Na+)
Covalent Bonds - Share electrons  Polar Bonds  - Hydrogen and Oxygen bonds 
- Unequal sides 
- H2O
Nonpolar Bonds - Carbon Carbon bonds 
- Two of the same element are automatically nonpolar bonds
- Carbon Hydrogen bonds (oils) 
- Equal on both sides
- CO2
Least to Most Polar Bonds - Moves from left side of the Periodic Table to the right side 
- left side doesn’t want electrons (not bullies) right side does (bullies)
C-C - nonpolar
C-H - nonpolar
C-N - polar
C-O – polar
Hydrogen Bonds - requires a hydrogen and either a nitrogen, oxygen, or fluorine (NOF)
- intermolecular force
o moves across molecules  - stick to each other they aren’t sharing electrons Cohesive - stick to each other
- water molecules
Adhesive - sticks to other things  Properties of Water  - Hydrogen bonds with other water molecules
- Polar covalent Bonds
- Stabilizes body temperature 
- Adhesion (sticks to other polar substances)
- Cohesion (sticks to other water molecules)
- Lubricant
- Chemical Reactions

This is the end of the preview. Please to view the rest of the content
Join more than 18,000+ college students at Brigham Young University - Idaho who use StudySoup to get ahead
School: Brigham Young University - Idaho
Department: Biology
Course: Human Anatomy and Physiology I
Professor: Lanning Baker
Term: Fall 2016
Name: BIO 264 Week 2 Notes
Description: Class Notes for this week
Uploaded: 01/15/2018
6 Pages 26 Views 20 Unlocks
  • Better Grades Guarantee
  • 24/7 Homework help
  • Notes, Study Guides, Flashcards + More!
Join StudySoup for FREE
Get Full Access to BYUI - BIO 264 - Class Notes - Week 2
Join with Email
Already have an account? Login here
Log in to StudySoup
Get Full Access to BYUI - BIO 264 - Class Notes - Week 2

Forgot password? Reset password here

Reset your password

I don't want to reset my password

Need help? Contact support

Need an Account? Is not associated with an account
Sign up
We're here to help

Having trouble accessing your account? Let us help you, contact support at +1(510) 944-1054 or

Got it, thanks!
Password Reset Request Sent An email has been sent to the email address associated to your account. Follow the link in the email to reset your password. If you're having trouble finding our email please check your spam folder
Got it, thanks!
Already have an Account? Is already in use
Log in
Incorrect Password The password used to log in with this account is incorrect
Try Again

Forgot password? Reset it here