The chemists tools
Download
1 / 27

The chemists tools - PowerPoint PPT Presentation


  • 66 Views
  • Uploaded on

The chemists tools. Elements and the periodic table. Elements. Pure substances that cannot be separated into different substances by ordinary processes Are the building blocks of matter 120 elements known today Examples: carbon gold calcium. Symbols of Elements.

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 ' The chemists tools' - nam


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
The chemists tools
The chemists tools

Elements and the periodic table


Elements
Elements

  • Pure substances that cannot be separated into different substances by ordinary processes

  • Are the building blocks of matter

  • 120 elements known today

    Examples: carbon

    gold

    calcium


Symbols of elements
Symbols of Elements

  • Use 1 or 2 letter abbreviations

  • Capitalise the first letter only

    Examples:

    C carbon Co cobalt

    N nitrogen Ca calcium

    F fluorine Br bromine

    O oxygen Mg magnesium


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


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


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


Solution
Solution

Select the correct symbol for each:

A. Calcium

2) Ca

B. Sulfur

1) S

C. Iron

3) Fe


Learning check1
Learning Check

Select the correct name for each:

A. N

1) neon 2) nitrogen 3) nickel

B. P

1) potassium 2) phlogiston 3) phosphorus

C. Ag

1) silver 2) aegean 3) gold


Solution1
Solution

Select the correct name for each:

A. N

2) nitrogen

B. P

3) phosphorus

C. Ag

1) silver


Periodic table
Periodic Table

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


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


Groups of elements
Groups of Elements

  • Vertical columns on the periodic table

  • Similar physical properties

  • Similar chemical properties



Representative groups
Representative Groups

  • Group 1 Alkali Metals

  • Group 2 Alkaline Earth Metals

  • Group 7 Halogens

  • Group 8 Noble Gases


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


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



Learning check2
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


Solution2
Solution

A. Element in Group 7A, period 4

1) Br

B. Element in Group 2A, Period 3

2) magnesium


Learning check3
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


Solution3
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


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


Metals and nonmetals1
Metals and Nonmetals

Transition metals

NONMETALS

METALS

METALS


Learning check4
Learning Check

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

A. sulphur ____

B. chlorine ____

C. sodium ____

D. iron ____

E. carbon ____

F. silver ____


Solution4
Solution

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

A. sulphur 2

B. chlorine 2

C. sodium 1

D. iron 1

E. carbon 2

F. silver 1


Learning check5
Learning Check

Select the correct elements:

A. Metals in Group IVA

1) Ge, Sn, Pb

2) C, Si

3) C, Si, Ge, Sn

B. Non-metals in Group VA

1) As, Sb, Bi

2) N, P, As

3) N, P, As, Sb


Solution5
Solution

A. Metals in Group 4A

1) Ge, Sn, Pb

B. Nonmetals in Group 5A

2) N, P, As


ad