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ALL MIXED UP PRESENTATION

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by

Mengna Nhim

on 1 March 2016

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Transcript of ALL MIXED UP PRESENTATION

ALL MIXED UP PRESENTATION
BY: MENGNA NHIM
THE ELEMENT CHOSEN TODAY IS... NITROGEN!
HOW MANY PROTONS, NEUTRONS AND ELECTRONS DOES IT HAVE?
7.
7.
AND 7!
WHAT CAN IT BE USED FOR?
COMMON USES
PHARMACOLOGICAL DRUGS
NITROUS OXIDE FORM
ANESTHETIC
PAINTBALL GUN POWER SOURCE
CHEMICAL PROPERTIES
COLOURLESS
ODOURLESS
TASTELESS
INERT
PHYSICAL PROPERTIES
MELTING POINT IS -210 DEGREES CELCIUS
BOILING POINT IS -195.8 DEGREES CELCIUS
GAS
LIQUID
DENSITY OF 0.808G/ML
BENEFITS AND LIMITATIONS
BENEFITS - IT CLEARLY SHOWS THE AMOUNT OF
PROTONS, NEUTRONS AND ELECTRONS. THE COLOUR
CO-ORDINATION HELPS AND IS VISIBLY PLEASING.
LIMITATIONS - IT DOES NOT IMITATE THE WAY AN
ACTUAL ATOM WOULD MOVE AND REMAINS STATIONARY.
IT DOES NOT ACCURATELY SHOW THE DIFFERENCE IN
SIZE BETWEEN THE PROTONS, NEUTRONS AND ELECTRONS.
JJ THOMSON
1897
NIELS BOHR
1922
ERNEST RUTHERFORD
1911
JOHN DALTON
1803
SIR WILLIAM CROOKES
1879
*ALL MATTER ARE MADE UP OF ATOMS. ATOMS ARE INDESTRUCTIBLE AND INDIVISIBLE.
*ATOMS OF THE SAME ELEMENT ARE IDENTICAL IN MASS AND CHARACTERISTICS.
*COMPOUNDS ARE A COMBINATION OF DIFFERENT TYPES OF ATOMS.
*CHEMICAL REACTION IS THE REARRANGEMENT OF ATOMS.
GASEOUS STATE
NON-METAL
NOT FLAMMABLE
FORMS STRONG BONDS
*CATHODE RAYS HAVE THESE PROPERTIES:
-TRAVELS IN A STRAIGHT LINE
-CAUSE GLASS TO FLUORESCE
-NEGATIVE CHARGE TOWARDS OBJECTS THEY STRIKE
-DEFLECTED BY ELECTRIC FIELDS AND MAGNETS
-HAVE A MASS
*PROVED G.J. STONEY THEORY
CORRECT WITH A CATHODE RAY
BY IDENTIFYING ELECTRONS.
*MADE UP HIS OWN ATOM MODEL.
*FAILED TO IDENTIFY PROTONS AND NEUTRONS

*MADE PLANETARY MODEL OF THE ATOM WITH PROTONS AND NEUTRONS INTHE NUCLEUS WITH ELECTRONS ORBITING
*DISCOVERED ALPHA AND BETA RAYS
*MADE LAWS ON RADIOACTIVE DECAY

*PROPOSED A THEORY THAT ENERGY CAN ONLY BE TRANSFERRED IN CERTAIN QUANTITIES.
*THEORY EXPLAINED WHY ATOMS PRODUCED LIGHT AT A CERTAIN WAVELENGTH
*BELIEVED ELECTRONS SHOULD JUMP AROUND THE NUCLEUS AT A SPECIFIED COURSE.
THANK YOU!
*http://www.usesof.net/uses-of-nitrogen.html
*http://www.airproducts.com/products/Gases/gas-facts/physical-properties/physical-properties-nitrogen.aspx
*http://atomictimeline.net/index.php
*http://www.cram.com/flashcards/scientists-and-their-contribution-to-the-atomic-model-882246
*http://www.iun.edu/~cpanhd/C101webnotes/composition/dalton.html
*http://www.britannica.com/biography/William-Crookes

SOURCES
WEBSITES
BOOKS
E.SCERRI. 30- SECOND ELEMENT
Full transcript