Here we go, 6 step cross-over time.Not a dance :) It's how we write ionic formulas1. Begin by identifying the metal and nonmetal.2. Write symbols3. Write charges (for transition metals, the charge of the metal is the number in the () after the metal name.4. Cross-over the charges from top to bottom5. Remove the charges6. Simplify the numbers and remove 1's
Bell ringer- pick up your quiz from yesterday. Get out paper and pencil. Copy these notes.
For the following compounds, give the formulas
sodium phosphide
aluminum sulfide
beryllium chloride
calcium oxide
1. Begin by identifying the metal and nonmetal.2. Write symbols3. Write charges (for transition metals, the charge of the metal is the number in the () after the metal name.4. Cross-over the charges from top to bottom5. Remove the charges6. Simplify the numbers and remove 1's
potassium sulfide
Calcium fluoride
rubidium arsenide
strontium selenide
1. Begin by identifying the metal and nonmetal.2. Write symbols3. Write charges (for transition metals, the charge of the metal is the number in the () after the metal name.4. Cross-over the charges from top to bottom5. Remove the charges6. Simplify the numbers and remove 1's
Barium chloride
Cesium carbide
For the following compounds, give the formulas
magnesium nitrate
calcium phosphate
ammonium sulfate
silver cyanide
1. Begin by identifying the metal and nonmetal.2. Write symbols3. Write charges (for transition metals, the charge of the metal is the number in the () after the metal name.4. Cross-over the charges from top to bottom5. Remove the charges6. Simplify the numbers and remove 1's
Bell ringer- get out homework and check against screen
22.) Na3P23.) Mg(NO3)2
25.) Ca3(PO4)2
29.) BeCl2
35.) CaO36.) Mg(C2H3O2)2
39.) BaO
http://www.youtube.com/watch?v=CyFGooWJvGg&list=PL3ABD5DB7B56A641F&index=2&feature=plpp_video
lead (II) sulfite
copper (I) arsenide
iron (III) oxide
vanadium (V) phosphate
For the following compounds, give the formulas
1. Begin by identifying the metal and nonmetal.2. Write symbols3. Write charges (for transition metals, the charge of the metal is the number in the () after the metal name.4. Cross-over the charges from top to bottom5. Remove the charges6. Simplify the numbers and remove 1's
Bell ringer
We will use the reverse of the 6 step cross-over to do this.1. Separate the 2 elements or polyatomic ions.2. Add 1's to elements with no number.3. Cross-over bottom to top.4. Add charges- 1st one is +, 2nd one is -5. Make sure the charges match the expected charges in the PT or PAL.6. Write the name. Metal stays the same, nonmetal drops its ending and adds -ide. For transition metals, change the charge to roman numerals, place in parentheses following the metal name. [Fe2+ would change to Iron (II) ]
NaOH
MgBr2
KCl
Al2S3
Mg3P2
Zn(OH)2
BeSO4
Name the following ionic compounds, please note that no Roman Numerals are needed.
We will use the reverse of the 6 step cross-over to do this.1. Separate the 2 elements or polyatomic ions.2. Add 1's to elements with no number.3. Cross-over bottom to top.4. Add charges- 1st one is +, 2nd one is -5. Make sure the charges match the expected charges in the PT or PAL.6. Write the name. Metal stays the same, nonmetal drops its ending and adds -ide. For transition metals, change the charge to roman numerals, place in parentheses following the metal name. [Fe2+ would change to Iron (II) ]
Formulas Lesson 4_ Transition Metals Part 2.mp4
FeCl2
FeCl3
CrF2
PbO
Roman Numerals are needed here, because these contain Transition Metals.
We will use the reverse of the 6 step cross-over to do this.1. Separate the 2 elements or polyatomic ions.2. Add 1's to elements with no number.3. Cross-over bottom to top.4. Add charges- 1st one is +, 2nd one is -5. Make sure the charges match the expected charges in the PT or PAL.6. Write the name. Metal stays the same, nonmetal drops its ending and adds -ide. For transition metals, change the charge to roman numerals, place in parentheses following the metal name. [Fe2+ would change to Iron (II) ]
Binary Ionic Compounds
Binary Ionic Compounds part 2
Polyatomic part 1
Polyatomic part 2