slide1
Download
Skip this Video
Download Presentation
Atomic Structure

Loading in 2 Seconds...

play fullscreen
1 / 15

Atomic Structure - PowerPoint PPT Presentation


  • 435 Views
  • Uploaded on

Atomic Structure. Inner electron shell. Proton. Nucleus. Neutron. Outer electron shell. Sub Atomic Particles. 1. PROTONS - positive electrical charge, found in the NUCLEUS, or center of an atom. 2. NEUTRONS - neutral (no electrical charge), also found in the NUCLEUS.

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 'Atomic Structure' - Solomon


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
atomic structure
Atomic Structure

Inner electron shell

Proton

Nucleus

Neutron

Outer electron shell

sub atomic particles
Sub Atomic Particles
  • 1. PROTONS- positive electrical charge, found in the NUCLEUS, or center of an atom.
  • 2. NEUTRONS- neutral (no electrical charge), also found in the NUCLEUS.
  • 3. ELECTRONS- negative electrical charge, found moving around the nucleus in the ELECTRON CLOUD
friendly electrons
Friendly electrons
  • Electrons like to travel in pairs, when they can find another electron to travel with.
  • Different layers within the electron cloud are called ENERGY LEVELS or SHELLS
friendly electrons5
Friendly electrons
  • Electrons like to travel in pairs, when they can find another electron to travel with.
  • Different layers within the electron cloud are called ENERGY LEVELS or SHELLS
slide6

Atomic Number?

How many bonds will this form?

How many Protons?

electron shells
Electron shells
  • The first shell can hold 2 electrons.
  • The second shell can hold 8 electrons.
  • The third shell also holds 8 electrons.
slide8

Electrons exist in shells around the nucleus.

H 1 p+ (1 e-)

He 2 p+ (2 e-)

Li 3 p+ (3 e-)

C 6 p+ (6 e-)

N 7 p+ (7 e-)

O 8 p+ (8 e-)

slide9

How to find atomic structure

  • ATOMIC NUMBER = protons in the nucleus
  • Each different atomic number is a new ELEMENT, or pure substance that cannot be broken down
slide10

How to find atomic structure

  • ATOMIC MASS = protons PLUS neutrons in the nucleus
  • Atomic Mass- Atomic Number = neutrons
periodic table
Periodic Table

Alkali Metals

Halogens

Noble Gases

information in the table
Information in the Table

47

Atomic number

Name of the element

Elemental Symbol

Silver

Ag

107.87

Atomic mass (weight)

slide13
109 elements are currently known:
  • (Don’t need to know this!)
    • 87 are metals
    • 26 are radioactive
    • 16 are man made (all radioactive)
    • 11 occur as gases
    • 2 occur as liquids
navigating the periodic table
Navigating the Periodic Table
  • The rows are the “periods”
    • Each period starts a new shell of electrons
    • The periods are numbered starting with 1 at the top
  • The columns are the “groups”
    • Each group has similar chemical properties
    • The groups are numbered starting with 1 at the left
    • Elements with similar properties have the same number of electrons in the outermost shell
chemical families
Chemical Families
  • Chemical Families
    • Group 1 are called alkali metals because the react with water to from an alkaline solution, very soft metals.
    • Group 7 are the halogens
      • These need only one electron to fill their outer shell
      • They are very reactive.( disinfectants, bleach, headlights)
    • Group 0 are the noble gases as they have completely filled outer shells
      • They are almost non reactive.
ad