Lecture 2- POST life chemistry and energy

Lecture 2- POST life chemistry and energy - Lecture 2: Life...

Info iconThis preview shows pages 1–9. Sign up to view the full content.

View Full Document Right Arrow Icon
Click to edit Master subtitle style 9/8/11 Lecture 2: Life Chemistry and Energy
Background image of page 1

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

View Full DocumentRight Arrow Icon
9/8/11 Chapter 2 Life Chemistry and Energy Key Concepts of Lecture 2 Atomic Structure Is the Basis for Life’s Chemistry Biochemical Changes Involve Energy
Background image of page 2
9/8/11 Matter is composed of atoms. A Bohr model for atomic structure—the atom is largely empty space, and the electrons occur in orbits, or electron shells
Background image of page 3

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

View Full DocumentRight Arrow Icon
9/8/11 Element —pure substance that contains only one kind of atom Number of protons = atomic number For electrical neutrality, # protons = # electrons. Mass number— total number of protons and neutrons
Background image of page 4
9/8/11 Periodic Table: elements are listed by atomic number http://periodictable.com/
Background image of page 5

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

View Full DocumentRight Arrow Icon
9/8/11
Background image of page 6
9/8/11 Atomic Zen Octet rule —atoms (with at least two electron shells) form stable molecules so they have eight electrons in their outermost shells.
Background image of page 7

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

View Full DocumentRight Arrow Icon
9/8/11 Outer electron shell (valence shell) determines behavior of element in chemical reactions. Atoms with unfilled outer shells tend to
Background image of page 8
Image of page 9
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 09/08/2011 for the course RHE 306 taught by Professor Alyea during the Spring '08 term at University of Texas at Austin.

Page1 / 18

Lecture 2- POST life chemistry and energy - Lecture 2: Life...

This preview shows document pages 1 - 9. Sign up to view the full document.

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