Mrs knicely
This presentation is the property of its rightful owner.
Sponsored Links
1 / 20

Mrs. Knicely PowerPoint PPT Presentation


  • 59 Views
  • Uploaded on
  • Presentation posted in: General

Mrs. Knicely. Atoms , Solubility and the Periodic Table. Matter. Anything that has a mass and a volume. Atoms. The building blocks of Matter Consists of Protons (+), Electrons (-), and Neutrons (N ). All atoms of the same element have the same properties. Elements.

Download Presentation

Mrs. Knicely

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


Mrs knicely

Mrs. Knicely

Atoms , Solubility and the Periodic Table


Mrs knicely

Matter

  • Anything that has a mass and a volume


Mrs knicely

Atoms

  • The building blocks of Matter

  • Consists of Protons (+), Electrons (-),

  • and Neutrons (N).

  • All atoms of the same element have the same properties

Elements

  • Consists of only one kind of atom,

  • Cannot be broken down into a simpler type of matter by either physical or chemical means


Mrs knicely

Molecules

  • A molecule consists of two or more atoms of the same element, or different elements, that are chemically bound together.

  • In the animation above, two nitrogen atoms

  • (N + N = N2) make one Nitrogen molecule .


Mrs knicely

Compounds

  • Atoms of two or more different elements bound together.

  • Can be separated into elements chemically, but not physically.

In the animation above, water (H20) is a compound made of Hydrogen and Oxygen.


Mrs knicely

Solutions

  • Solutions are groups of molecules that are mixed up in a completely even distribution.


Mrs knicely

Solute

  • The substance to be dissolved.

Solvent

  • The one doing the dissolving.

Images are from http://www.chem4kids.com


Mrs knicely

Solubility

  • Solubility is the amount of solute that can be dissolved in a specific volume of solvent under certain conditions

    • Depends on the chemical nature of the solvent

    • Depends on the temperature of solute and solvent

    • The most common solvent is water


Mrs knicely

Making a Solution


Boiling point

Boiling Point

  • Boiling Point is the temperature at which liquid boils

  • Each pure substance has a specific boiling point

  • Examples:

    • B.P. of Water =100◦ C

    • B.P. of Nitrogen = -195.79◦C

    • B.P. of Silver = 2162◦C

    • B.P. of Carbon = 4072◦C


Melting point

Melting Point

  • Melting Point is the specific temperature when melting occurs

  • Change from solid to a liquid

  • Each pure substance has it’s own melting point

  • Ex.

    • M.P. of Water = 0◦ C

    • M.P of Nitrogen = -209.9◦C

    • M.P. of Silver = 961.63◦C

    • M.P. of Carbon = 3500.0◦C


Density

Density

  • Density is a comparison of how much matter there is in a certain amount of space.

  • Ex. People in a square


Periodic table

Periodic Table

  • Is a tabular display of the periodic chemical elements, organized on a basis of their properties

  • Elements are arranged left to right and top to bottom in order of increasing atomic number

  • Developed by Dmitri Mendeleev


Columns

Columns

  • Called “Groups” or “Families”

  • There are 18 groups number 1-18

  • Elements in the same group or family have similar characteristics or properties.


Mrs knicely

Rows

  • The horizontal rows of the periodic table are called periods.

  • There are 7 periods numbered 1-7

  • Elements in a period are not alike in properties.

  • The first element in a period is usually an active solid, and the last element in a period is always an inactive gas.


Interpreting the periodic table

Interpreting the Periodic Table


Atomic number

Atomic Number

  • The number of protons in an atom is referred to as the atomic number of that element.


Atomic mass

Atomic Mass

  • The atomic mass is the average mass of an element in atomic mass units ("amu"). 


Mass number

Mass Number

  • The sum of the protons and neutrons that make up that nucleus.


  • Login