Chem1201PReviewCh2 - Chemistry 1201 Review/Preview Chapter...

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

View Full Document Right Arrow Icon
Chemistry 1201 Review/Preview Chapter Two Review Guide Dr. Saundra McGuire Spring 2007 Atoms, Molecules, and Ions I. Fundamental Laws of Chemistry (Know how to state these and illustrate their operation) A. Law of Conservation of Mass B. Law of Constant Composition C. Law of Multiple Proportions II. Experiments Relative to Atomic Structure and Atomic Particles (Know how to explain each experiment and what each demonstrated) A. The JJ Thomson cathode ray tube experiment B. The Milliken Oil Drop Experiment C. Rutherford’s Experiment III. Atomic Structure A. Atomic particles -- protons, neutrons, electrons (mass and charge relationships) See Table 2.1 in text. B. Isotopes: A A = mass number ( protons + neutrons) X X is the elemental symbol Z Z = atomic number (# of protons) Number of neutrons = A - Z NOTE: All atoms of an element have the same number of protons; only the number of neutrons can change (for different isotopes) or the number of electrons can change (in the case of an ion of the element). C. Calculating average atomic weight from weights of individual isotopes Av. At. Mass = (wt. of isotope 1) X (% of isotope 1) + (wt. of isotope 2) X (% of isotope 2) + . .. 100
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.

This note was uploaded on 03/23/2011 for the course CHE 1201 taught by Professor Staff during the Summer '09 term at UC Davis.

Page1 / 3

Chem1201PReviewCh2 - Chemistry 1201 Review/Preview Chapter...

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