Chemical Bonds - Mr. Stone's Place

Chemical Bonds - Mr. Stone's Place

Chemical Bonds Why Atoms Combine? Why Would Elements Want to Combine? Most elements are unstable The only stable elements are the _____?

So elements combine to become _____? Formulas Formulas are used to represent a shorthand form of a compound H20 is the formula for water This tells us there are 2 hydrogen atoms

and 1 oxygen atom in this compound Rules for Writing Formulas The cation USUALLY comes first The anion USUALLY comes last Cation- positive charged atom Anion- negative charged atom Which is Which? Sodium is the _______?

Chlorine is the _______? Calcium is the _______? Oxide is the ________? Stable Elements Unless the element is a noble gas, to achieve a stable form of itself it needs a full outer shell of electrons (8 electrons) To do this we combine the right number

of elements to become stable We always look to the charges of each of the elements Lets Try To Become Stable Combine sodium and chlorine Combine Chlorine with itself Two ions from opposite sides of the table form IONIC BONDS

Which example from above is a compound with an ionic bond? Continued Covalent bonds keep non-metals attached to each other Oxygen in our air is found as O2 Oxygen bonds with a covalent bond

Ionic vs. Covalent Ionic compounds exchange electrons Covalent compounds share electrons Covalent Bond (Copy) Common Ionic Compounds NaCl KCl MgCl2

MgO Common Covalent Compounds CH4 H20 HCl O2 N2

Assignment Write the name for the following compounds: Write the chem.

Formula for the following: 1. 1. 2. LiBr

CaCl2 3. AlCl3 3. 4.

KI MgF2 4. Sodium chloride Magnesium oxide Cesium chloride Iron (II) oxide Tin (II) chloride

5. 2. 5. 1st Thing 1st Copy the list of

Polyatomic Ions from the right What is a polyatomic ion? Poly means many Many atoms is the meaning Charge Name Formula 1+ Ammonium NH4

1- Acetate C2H3O2 2- Chlorate ClO3 Hydroxide

Nitrate OH NO3 Carbonate CO3 Sulfate

3- Phosphate SO4 PO4 Binary Compounds We have been working mostly with

binary compounds (bi-meaning two) NaCl is a binary compound Be sure to add ide to replace the end of the second element (oxide, chloride) Back to Polyatomic Ions The charge of the 1st element must equal the charge of the polyatomic ion

K(CO3) Is this right? No, Why? K is a +1 and Chlorate is a 2 K2(CO3) Is this right? Yes Hydrates If water is part of an ionic compounds structure we call this a hydrate

An example is Cobalt Chloride pentahydrate This is written as CoCl5 H20 Anhydrous This is the removal of that water Anhydrous means without water

Recently Viewed Presentations

  • Fog Computing: A Platform for IoT and Analytics

    Fog Computing: A Platform for IoT and Analytics

    Fog Computing. prepared by Prashanth Peddabbu. Fog computing is making use of decentralized servers in between network core and network edge for data processing and to serve the immediate requirements of the end systems.
  • At Scene TRAFFIC SAFETY Special Thanks Freeport Fire

    At Scene TRAFFIC SAFETY Special Thanks Freeport Fire

    Stay on protected side when possible. ... Termination of the incident, removal of crews, apparatus and equipment must be done promptly to reduce exposure to moving traffic and minimize traffic congestion. Officer's Safe Parking "Cue Card" ...
  • Acids and Bases - SharpSchool

    Acids and Bases - SharpSchool

    Acids are electron pair acceptors. Bases are electron pair donors. B F F F :N H H H Lewis Acids and Bases Boron triflouride wants more electrons. B F F F :N H H H Lewis Acids and Bases Boron...
  • VHA Nurse Staffing Methdology Implementation in the ICU

    VHA Nurse Staffing Methdology Implementation in the ICU

    Recommendation: "VHA should conduct a program review of the implementation of the PACT staffing model in primary care to identify the causes of the gaps on access to quality care, the appropriateness of current guidelines, and performance standards, and determine...
  • Smokey Creek Cowboy Church Constitution and By-Laws 2015

    Smokey Creek Cowboy Church Constitution and By-Laws 2015

    - Lay Pastors will be appointed to a one year term, but may serve multiple terms. The Lay Pastor is appointed by the Pastor with consensus of the Team Leaders and a two-thirds (2/3) vote by the members of the...
  • Microprocessors I

    Microprocessors I

    Byte Set on Condition Instruction . Operation: Flags tested for conditions defined by "cc" and the destination in a register or memory updated as follows
  • Literacy Homework: Friday 28th Februrary Clockwork by Phillip

    Literacy Homework: Friday 28th Februrary Clockwork by Phillip

    A description of the mysterious Doctor Kalmenious' workshop, including the sights and sounds of his strange clockwork inventions and experiments. Use your imagination to describe what you may see inside. Remember, he is a strange but clever inventor who can...
  • Folie 1 - Homepage - Gewerkschaft der Polizei

    Folie 1 - Homepage - Gewerkschaft der Polizei

    Bereiche 4 = Arbeitsbereiche 5 = VIP-Bereich, 6 = Medientribüne, 7 = Medienzentrum, 8 = TV Compound 9 = Hospitality, = alle Bereichen Ständige Konferenz der Innenminister und Senatoren der Länder und des Bundes - IMK - Stab Sicherheit WM...