Periodic Table Trends
Controlling Factors(1) and (2)
Across a period - (1) Increasing core charge (aka effective nuclear charge).
Changes across a period and the effect on Atomic radius:
Down a group (2) Increased shielding
Physical and Chemical Changes WS (Discuss and Collect).
Debrief Density Lab Collect.
Filtration: Used to separate a hetereogeneous mixture.
Chromatography Typically used to separate solutions of p
4-sight test (period #1 only)
Read and mark-up the article Motion Detectors
Find three VIPs and write them here:
In Chapter #2 find the definitions of the following terms:
Discuss electron configurations WS
Finish Flame test lab
Orbital diagrams(back of worksheet)/laws(rules)
15/15 = 100% =
Do you believe all things are like
Quiz - Atoms/ions /isotopes
Wrap up EM radiation.
Quantum Theory Look over vocab from last week, videos on quantum theory.
Electron behavior (levels, sublevels, orbitals)
Scientific Contributors- Contribution.
In 1911, Rutherford proposed our present view of the nuclear atom. His model described the
atom as having a very small nucleus containing most of the mass and all of the atoms positive
charge. Bohr proposed t
History of the Atom
Your assignment is to research the major scientist who contributed significant discoveries
that have impacted the discovery of the atom and develop a chronological project. Your
project MUST include the following
Chapter 3 Test Review:
Instructions: Answer the following questions
1. Label the following as ionic compounds, covalent molecules, or acids.
b. Ammonium Chloride
g. Ammonia (nitrogen trihyd
1. Calculate the percent composition of hydrogen in sodium bisulfate.
NaHSO4 = 120 g
Na = 23
S = 32
O = 16 x 4 = 64
(1 g/120 g) x 100 = 0.83 % H
2. What is the empirical formula of the compound with 32.4% sodium,
Lab equipment funsie pd. 2 only
Read: P 17 You Are What You Eat Aloud?
Write about something that surprised you in the article.
Write about a memorable meal.
Vocabulary Write the definitions for the
ShippenSburg News-Chronicle 1/23/12
- Look over homework. Wrap up demonstrations.
- Read pp 14-16
List 5 mixtures that you eat or drink.
Write about your favorite soup?
Using the above chart write what you think the difference is between a homogeneous
CHEMICAL AND PHYSICAL CHANGES
Chemistry is the study of matter and the changes that it undergoes. These changes can be
classified as either physical or chemical. When a physical change occurs, the physical properties of a
A. Valence electrons wander freely through metal. Metals consists of cations held
together by negatively-charged valence electron "glue. Or sea of valence electrons.
B. Free valence electrons can move rapidly in response
The Old Bean (II)
Return Beanium lab
Discuss HW calculation of atomic masses amus?
Calculate the atomic mass to four significant digits for gallium, given the following data:
The Punxsutawney Gazette
Return/go over unit #1 exams.
Discuss metric system and homework
Worksheet on metric estimation
Write about measurements that are made by other people that you expect to be
Measuring activity find the dimensions o
THE YORK DISPATCH
Share measurement relevance
Read the article Questions from the Classroom. List three VIPs from the
Find the following people or terms in Ch. 2 of your book and take notes on each.
Be sure to incl
Ionic Sizes Isoelectronic series
First Ionization Energy : The energy needed to remove the highest energy electron.
Electronegativity(EN) : The measure of an atoms ability to attract electrons in a chemical
Find and define the following terms:
Alkaline earth metals
Have you ever heard of the following (check all that apply)
Stoichiometry Review - ANSWERS
Problems on page 930-933. SHOW ALL WORK including units and labels.
Group A: problem numbers 165, 173, 203, 224 (a, b only)
#165 answer 8 mol Na
#173 answer 24.9 g AgBr
#203( a, c only) answer a. Al is the limiting reactant,
Naming Binary Ionic Compouds
Always cation name first, then anion:
Cation name: same as on periodic table or polyatomic sheet
Anion name: monatomic names end in ide
Polyatomic names unchanged
Transition metals can have more than one possible charge-Roma
Periodic Table Basics
First table made by Dmitri _ (Russia, 1869)
Elements originally ordered by atomic _; now ordered by atomic _
Periodic Law: the physical and chemical properties of elements are periodic functions of
their atomic numbers.
-describes the amount of heat a substance can hold
Specific Heat (C) : the amount of energy needed to raise the temperature of 1 gram of a
substance by 1 C.
C is a unique property for each substance!
Ex: H2O has a S. H. of 1.00 cal/g C
Reactions Test Study Guide - 2012
formula writing (ionic, covalent, acid, diatomic molecules): be able to write a
formula when given the name as a reactant or product
reactants, products: know the role of each in a reaction and how to identify