How many electrons do all atoms want in their outer shell? How do these atoms get those e-s in the outer shell? How can you tell how many valence e-s.
Lecture 2
The Origin of the Ocean The Water Planet. AN OCEAN WORLD The ocean covers 71% of Earth’s surface The ocean contains 97% of the water on Earth The ocean.
Warm-up Spiral Write or read over your summary for the notes on “Describing Chemical Reactions” (Pgs. 544 – 548) If you were absent, begin to write notes.
CHEMICAL COMPOUNDS AND FORMULAS. ELEMENTS AN ELEMENT IS A PURE SUBSTANCE CONTAINING ONLY ONE KIND OF ATOM.
Chemistry 101 Answers. 1. What makes the properties of atoms (and elements) different from one another?
H2OH2O Review: How to make a molecule… No Subscript, There is only 1 atom of oxygen in the molecule Subscript Visual modelFormula.
The Big Bang Event that occurred approximately 13.7 BILLION years ago All the mass and energy concentrated at a point The universe began expanding and.
Chem 125 Lecture 3 9/9/02 Projected material This material is for the exclusive use of Chem 125 students at Yale and may not be copied or distributed.
Covalent Bonding Sec. 8.3: Molecular Structures. Objectives List the basic steps used in drawing Lewis structures. List the basic steps used in drawing.
Covalent Compounds Contain 2 or more nonmetals. Made of molecules—NOT IONS. 2 nonmetals can combine in more than 1 way! CO 2 is a gas that we breathe out.
Asiatic Calendar
