chapter 2 atoms and elements l.
Download
Skip this Video
Loading SlideShow in 5 Seconds..
Chapter 2 Atoms and Elements PowerPoint Presentation
Download Presentation
Chapter 2 Atoms and Elements

Loading in 2 Seconds...

play fullscreen
1 / 27

Chapter 2 Atoms and Elements - PowerPoint PPT Presentation


  • 139 Views
  • Uploaded on

Chapter 2 Atoms and Elements. 2.1 Elements and Symbols 2.2 Periodic Table. Elements. Pure substances that cannot be separated into different substances by ordinary processes Are the building blocks of matter 112 elements known today Examples: carbon gold calcium.

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'Chapter 2 Atoms and Elements' - jaden


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
chapter 2 atoms and elements
Chapter 2Atoms and Elements

2.1 Elements and Symbols

2.2 Periodic Table

LecturePLUS Timberlake

elements
Elements
  • Pure substances that cannot be separated into different substances by ordinary processes
  • Are the building blocks of matter
  • 112 elements known today

Examples: carbon

gold

calcium

LecturePLUS Timberlake

symbols of elements
Symbols of Elements
  • Use 1 or 2 letter abbreviations
  • Capitalize the first letter only

Examples:

C carbon Co cobalt

N nitrogen Ca calcium

F fluorine Br bromine O oxygen Mg magnesium

LecturePLUS Timberlake

symbols from latin names
Symbols from Latin Names

Element Symbol Latin name

Copper Cu cuprum

Gold Au aurum

Lead Pb plumbum

Mercury Hg hydrargyrum

Potassium K kalium

Silver Ag argentum

Sodium Na natrium

Tin Sn stannum

LecturePLUS Timberlake

major elements in the body
% Major Elements in the Body

O 65.0 % K 0.34

C 18.0 S 0.26

H 10.0 Na 0.14

N 3.0 Cl 0.14

Ca 1.4 Fe 0.004

P 1.0 Zn 0.003

Mg 0.50

Trace Elements

As, Cr, Co, Cu, F, I, Mn, Mo, Ni, Se, Si, V

LecturePLUS Timberlake

learning check
Learning Check

Select the correct symbol for each:

A. Calcium

1) C 2) Ca 3) CA

B. Sulfur

1) S 2) Sl 3) Su

C. Iron

1) Ir 2) FE 3) Fe

LecturePLUS Timberlake

solution
Solution

Select the correct symbol for each:

A. Calcium

2) Ca

B. Sulfur

1) S

C. Iron

3) Fe

LecturePLUS Timberlake

learning check8
Learning Check

Select the correct name for each:

A. N

1) neon 2) nitrogen 3) nickel

B. P

1) potassium 2) phogiston 3) phosphorus

C. Ag

1) silver 2) agean 3) gold

LecturePLUS Timberlake

solution9
Solution

Select the correct name for each:

A. N

2) nitrogen

B. P

3) phosphorus

C. Ag

1) silver

LecturePLUS Timberlake

periodic table
Periodic Table

The periodic table is an arrangement of the elements according to similarities in their chemical and physical properties.

LecturePLUS Timberlake

physical properties
Physical Properties

The characteristics of a substance that can be observed without changing the substance.

  • Color
  • Size
  • Shape
  • Density
  • Freezing and Boiling Points
  • Odor

LecturePLUS Timberlake

groups of elements
Groups of Elements
  • Vertical columns on the periodic table
  • Similar physical properties
  • Similar chemical properties

LecturePLUS Timberlake

groups on the periodic table
Groups on the Periodic Table

1 2 3 4 5 6 7 8

LecturePLUS Timberlake

representative groups
Representative Groups
  • Group 1 Alkali Metals
  • Group 2 Alkaline Earth Metals
  • Group 7 Halogens
  • Group 8 Noble Gases

LecturePLUS Timberlake

location of some groups
Location of Some Groups

1 2 3 4 5 6 7 8

A

l m

k e

a t

l a

i l

s

A

l

k

a

l

i

n

e

H

a

l

o

g

e

n

s

I G

n a

e s

r e

t s

LecturePLUS Timberlake

periods on the periodic table
Periods on the Periodic Table
  • Horizontal rows from Group 1 to Group 8.
  • Numbered 1, 2, 3, ….
  • Include representative elements and transition elements

LecturePLUS Timberlake

periods on the periodic table17
Periods on the Periodic Table

1

2

3

4

5

6

LecturePLUS Timberlake

learning check18
Learning Check

A. Element in Group VIIA, Period 4

1) Br 2) Cl 3) Mn

B. Element in Group IIA, Period 3

1) beryllium 2) magnesium 3) boron

LecturePLUS Timberlake

solution19
Solution

A. Element in Group 7A, period 4

1) Br

B. Element in Group 2A, Period 3

2) magnesium

LecturePLUS Timberlake

learning check20
Learning Check

A. Element in Group VIIA, period 4

1) Br 2) Cl 3) Mn

B. Element in Group IIA, Period 3

1) beryllium 2) magnesium 3) boron

C. Metals in Group IVA

1) Ge, Sn, Pb 2) C, Si 3) C, Si, Ge, Sn

D. Nonmetals in Group VA

1) As, Sb, Bi 2) N, P, As 3) N, P, As, Sb

LecturePLUS Timberlake

solution21
Solution

A. Element in Group VIIA, period 4

1) Br

B. Element in Group IIA, Period 3

2) magnesium

C. Metals in Group IVA

1) Ge, Sn, Pb

D. Nonmetals in Group VA

2) N, P, As

LecturePLUS Timberlake

metals and nonmetals
Metals and Nonmetals

Metals

  • Located to the left of the heavy line
  • Shiny, ductile
  • Good conductors of heat and electricity

Nonmetals

  • Located to the right of the heavy line
  • Dull and brittle
  • Poor conductors, good insulators

LecturePLUS Timberlake

metals and nonmetals23
Metals and Nonmetals

Transition metals

NONMETALS

METALS

METALS

LecturePLUS Timberlake

learning check24
Learning Check

Specify metal (1) or nonmetal (2) for each:

A. sulfur ____

B. chlorine ____

C. sodium ____

D. iron ____

E. carbon ____

F. silver ____

LecturePLUS Timberlake

solution25
Solution

Specify metal (1) or nonmetal (2) for each:

A. sulfur 2

B. chlorine 2

C. sodium 1

D. iron 1

E. carbon 2

F. silver 1

LecturePLUS Timberlake

learning check26
Learning Check

Select the correct elements:

A. Metals in Group IVA

1) Ge, Sn, Pb

2) C, Si

3) C, Si, Ge, Sn

B. Nonmetals in Group VA

1) As, Sb, Bi

2) N, P, As

3) N, P, As, Sb

LecturePLUS Timberlake

solution27
Solution

A. Metals in Group 4A

1) Ge, Sn, Pb

B. Nonmetals in Group 5A

2) N, P, As

LecturePLUS Timberlake