1 / 19

The Structure of Matter: Bonds

The Structure of Matter: Bonds. http://www.youtube.com/watch?v=_M9khs87xQ8. A Compound is made of up two or more elements that combine and has properties very different from the elements that make it. Chemically Joined New properties when atoms or ions combine

marcus
Download Presentation

The Structure of Matter: Bonds

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. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. The Structure of Matter: Bonds http://www.youtube.com/watch?v=_M9khs87xQ8

  2. A Compound is made of up two or more elements that combine and has properties very different from the elements that make it Chemically Joined New properties when atoms or ions combine Combined in a specific ratio to form certain compounds

  3. Compounds - elements combine to form 
compounds. The compound has different 
properties that the original elements. 4.1.3

  4. The attractive forces that hold different atoms or ions together in compounds are called CHEMICAL BONDS. Chemical Structure shows the arrangement of bonded atoms or ions within a substance. BOND LENGTH: Avg distance between nuclei of two bonded atoms BOND ANGLE: Angle formed by two bonds to the same atom

  5. Chemical bond - the attractive force that holds atoms or ions together in a 
compound Placing a lit candle under a balloon containing hydrogen and oxygen gas causes 
the balloon to melt, releasing the mixed gases. The mixed gases are ignited by the 
candle, chemical bonds are broken and the atoms are rearranged to form a new 
compound, water. The properties of water are different than the properties of 
oxygen and hydrogen. 4.1.4

  6. 6.2-1 Chemical Formula - shows the type 
and numbers of atoms in the 
compound C12H22O11 Mg(OH)2 4.1.5

  7. There are three types of bonds - Molecular or Covalent - Ionic - Metallic A molecular formula shows the kind and number 
of atoms in a molecule. All nonmetals - valence 
electrons are shared Example: CO2 Formula Unit tells the lowest whole number 
ratio of ions in an ionic compound. Metal + Nonmetal - Atoms lose and gain 
electrons Example: MgCl2

  8. Bonds can bend and stretch without 
breaking. The atoms move back and 
forth a little and their nuclei do not 
always stay the same distance apart. 
Bond lengths are averaged.

  9. O Structural formula - Chemical symbols and angles are expressed H H Ball-and-stick Model Bond is represented 
by stick Shows angles 4.1.7

  10. 3 - Molecular Formulas Space-filling Model Shows the space that is occupied by 
the atoms Harder to see angles 4.1.8

  11. energy level Atomic Number which Any left over? protons Outer energy level electrons 1st energy level Valence electrons How many left over

  12. Worksheet   Interpreting Chemical Formulas Pg 12 Part A 1. H2O Part B l. HNO3

  13. http://www.youtube.com/watch?v=ljvX-RMv_lw

  14. Attachments Ionization Energy And Electron Affinity.wmv

More Related