Lecture 2-1201

Lecture 2-1201 - Lecture2 Biology1201 15:06

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Lecture 2 Biology 1201 15:06 What Determines the number and Type of Chemical Bonds? Number=valence  Type=electronegativity Electronegativity Electronegativity is a measure of the tendency of an atom to attract a bonding  pair of electrons Measure of the attraction an atom has for electrons (look at electronegativity chart posted on moodle) Chemical Bonds Forces holding atoms together in molecules Characterized as  Strong  or  Weak  depending on the energy required to make/ break the bond Strong o Covalent bonds involve sharing of electrons Weak o Non-covalent bonds Ionic interactions-attraction of opposite charges. One atom donates an  electron to another Hydrogen Bonds-bond with F, O, and N Figure 2.12 Valence vs. Valence Electrons Valence is the number of electrons needed to fill the outermost shell of an  atom Valence electrons are the electrons contained in the outermost electron shell 
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 6

Lecture 2-1201 - Lecture2 Biology1201 15:06

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online