1.The smallest particle of an element (with the same properties as the element), is called a(n) ___. 2.What two major discoveries did Rutherford make?

1. The smallest particle of an element (with the same properties as the element), is called a(n) ___.

2. What two major discoveries did Rutherford make?

3. Whose atomic model involves electron shells?

4. Who developed the Billiard Ball model?

5. (Multiple Choice) Because atoms are so small,

a. scientists create models to describe them.

b. they cannot be made of smaller particles.c. there is no way to describe them.d. they cannot be synthesized by

scientists.

1. Atom2. The atom is

mostly empty space; & the nucleus is positively charged

3. Niels Bohr

4. John Dalton

BELLWORK: MONDAY 2/13/2012

Element- a pure substance consisting of one type of atom; unique atomic number; cannot be chemically broken down into other substances

Element name- the name of a chemical element

Chemical symbol- (aka atomic symbol) an abbreviation of the element nameNatural elements: 1-2 lettersSome man-made : 3 letters (temporary)

PERIODIC TABLE- PAGE 8

PASS OUT BLUE PERIODIC TABLEWHAT WORDS CAN YOU SPELL??

http://www.privatehand.com/flash/elements.html

Play Tom Lehrer's "The Elements"  song or show this Flash animation of the song by Mike Stanfill. 

If you can sing this song…in front of the class…then I will give you extra credit! The Boy Who Lived (Harry Potter) did it and so can you! Harry Potter Video

EXTRA CREDIT?

Periodic Table Scavenger Hunt. To complete use: Blue Periodic Table Handout Textbook pages 91-103

PERIODIC TABLE SCAVENGER HUNT- PG 6

NATURE OF SCIENCE

CRT REVIEW

TIME

Get out your pink packets so we can go over answers

Control – factor in an experiment that is kept the same Dependent variable – factor whose value is the result you are testing Graduated cylinder – glass container with markings, used to measure

volume of l iquids Gram – SI unit of measurement for mass Hypothesis – an idea that can be tested by experiment or observation Independent variable – factor that aff ects the value of the dependent

variable Liter – unit of l iquid volume used with the SI (metric) system Meter – base unit for length in the SI (metric) system Pie chart – a graph in the shape of a circle, where the size of each

slice indicates a percent of the whole Risk-benefi t analysis – identifying the possible negative (risk) and

positive (benefi t) results of a technology, before deciding to use it Scientifi c ethics – study of the impact of technology and science on

human society Scientifi c inquiry – eff orts to understand and explain the natural world

through observation and experiment Scientifi c model – simplifi ed version of some part of the natural world

that helps explain how it functions Trade off – accepting the drawbacks of a technology because of its

benefi ts Trial – one set of measurements or observations in an experiment

CRT REVIEW – PG. 1 L

1) C2) B3) D4) A5) C6) A

7) B8) D9) B10) B11) A12) D

CRT REVIEW – PG. 2

1) C2) A3) C4) A5) D

6) B7) C8) B9) B10) B

CRT REVIEW – PG. 3

Find the # of protons, neutrons, electrons, atomic

mass, or atomic number when given certain

information.

1. 6 protonsa) # electrons?b) Atomic number?c) Element?

2. 34 electronsa) # protons?b) Atomic number?c) Element?

3. 29 protons & 35 neutronsa) Atomic mass?b) Element?

BELLWORK: WEDNESDAY 2/15/12

1. 6 protonsa) 6 electronsb) Atomic number: 6c) Carbon

2. 34 electronsa) 34 protonsb) Atomic number: 34c) Selenium

3. 29 protons & 35 neutronsa) Atomic mass: 64 amub) Copper

Hints: # of protons = # of electrons # of protons = Atomic number Protons + Neutrons = Atomic

Mass

The properties of the elements repeat in each period (row) of the table An element’s properties can be predicted from its location in

the periodic table!

EVOLUTION OF THE PERIODIC TABLE- IT’S ELEMENTARY- VIDEO

6.34 PG. 8

MAJOR IDEA:

Mendeleev: discovered that patterns appeared when the elements were arranged in order of increasing atomic mass.

Sometimes this method didn’t work, so he would put the elements in a “best fit” location.

SONG

ORGANIZING THE ELEMENTS: ARRANGEMENT OF THE PERIODIC

TABLE

Peri

od

s-

hori

zon

tal

row

s (1

-7)

PASS OUT BIG white Periodic

Table!Label these on your blue and

white PT!

Organization of the Modern Periodic Table

Groups- vertical columns (1-18)

Label these on your blue and white PT!

1. Who organized the periodic table by increasing atomic mass?

2. How is the modern periodic table arranged?

3. Answer the following questions about the element with atomic number 35:

a. # protons?b. # electrons?c. Atomic Name and

symbol?d. # neutrons?

1. Dimitri Mendeleev - 1869

2. By increasing atomic number.

3. Atomic number 35:a. 35 protonsb. 35 electronsc. Bromine, Brd. 45 neutrons

BELLWORK: THURSDAY 2/16/2012

Name Symbol Atomic #

Hydrogen H 1

Helium He 2

Lithium Li 3

Beryllium Be 4

Boron B 5

Carbon C 6

Nitrogen N 7

Oxygen O 8

Fluorine F 9

Neon Ne 10

Sodium Na 11

Magnesium

Mg 12

Aluminum

Al 13

Silicon Si 14

Phosphorus

P 15

Sulfur S 16

Name Symbol Atomic #

Chlorine Cl 17

Argon Ar 18

Potassium

K 19

Calcium Ca 20

Iron Fe 26

Nickel Ni 28

Copper Cu 28

Zinc Zn 30

Bromine Br 35

Silver Ag 47

Tin Sn 50

Iodine I 53

Gold Au 79

Mercury Hg 80

Lead Pb 82

Uranium U 92

PG. 7 ANSWERS – 32 POINTS, 1 PT. PER LINE

You will take a quiz on all the elements and compounds you have to memorize from page 7

Elements Name, Symbol, and Atomic # MUST be spelled right and use correct capitalization for symbol

Compounds Common name, symbol, and scientific name Spelling counts! Must have the numbers be smaller than the letters.

You MUST get 100% on this test. You will have a zero in the gradebook until you get 100%.

I will give you 3 chances in class to achieve 100%. Once you get it, you don’t have to take it anymore. You will keep taking it until you do. If you can’t get it in 3 chances, you will have to fi nd time before or after school until you get 100

Quiz will be completely fi ll in the blank so you better know your stuff !

THE ELEMENT QUIZ

Modern Periodic Table

Organized based on atomic number (discovered in the 1900’s) rather than atomic mass• British scientist, Henry Mosley, created the modern periodic table of elements

• At 27 years old he was killed in WWIWhat are examples of some elements that don’t fit Mendeleev’s original

model (organized by increasing atomic mass)?Cobalt/Nickel- 27/28

Tellurium/Iodine- 52/53

Argon/Potassium- 18/19

Thorium/Protactinium- 90/92Uranium/Neptunium- 92/93Plutonium/Americium- 94/95

When elements are arranged in order of increasing atomic number, their physical and chemical properties show a periodic pattern.

TRENDS IN THE PERIODIC TABLE: PHYSICAL PROPERTIES OF

ELEMENTS

Find at least 3 element names on the periodic table that have names that are odd or recognizable. Where do you

think the name came from?Named after places discovered/created

Germanium- Germany Berkelium- Berkeley, California Americium – named after the country America, where the

element was created (in Chicago, Illinois) Europium – named after the continent Europe

Named after famous scientists Rutherfordium- Ernest Rutherford Einsteinium- Albert Einstein

Named using words from other languages Copper (Cu) – “cuprum,” derived from Greek; named after

the island in Cyprus in which it was mined Gold (Au) – “aurum,” derived from Latin; called the solar

metal; associated with the Sun (Sol) Iron (Fe) – “ferrous,” derived from Latin; associated with the

celestial body, Mars

HOW DO ELEMENTS GET THEIR NAMES?

GROUPS IN THE PERIODIC TABLE

Atomic NumberNumber of protons

in the nucleus of an atom

Atoms are neutral# protons = # electrons

Elements are arranged in Periodic Table according to increasing atomic number

Atomic MassSum of the

number of protons and neutrons in the nucleus of an atom

REMINDERS