Bonding Patterns
Bonding Patterns Before looking through this slide show, you need to know the information from “Chemical Compounds and Number of Bonds.”
Drawing Molecules Draw a molecule of a compound made from nitrogen and sodium
Steps for solving 1. Identify how many bonds each type of atom makes
Drawing Molecules Draw a molecule of a compound made from nitrogen and sodium 3 bonds 1 bond
Steps for solving 1. Identify how many bonds each type of atom makes 2. Put the atom that makes the most bonds in the middle 3. Draw the correct number of bonds coming off the middle atom
Drawing Molecules Draw a molecule of a compound made from nitrogen and sodium N
3 bonds 1 bond
Steps for solving 1. Identify how many bonds each type of atom makes 2. Put the atom that makes the most bonds in the middle 3. Draw the correct number of bonds coming off the middle atom 4. Add the second type of atom at the end of each bond 5. Check that each atoms makes the correct number of bonds, make changes if needed
Drawing Molecules Draw a molecule of a compound made from nitrogen and sodium Na
N
Na
3 bonds 1 bond
Steps for solving
Na
1. Identify how many bonds each type of atom makes 2. Put the atom that makes the most bonds in the middle 3. Draw the correct number of bonds coming off the middle atom 4. Add the second type of atom at the end of each bond 5. Check that each atoms makes the correct number of bonds, make changes if needed
Practice Draw a molecule of a compound made from beryllium and chlorine
Draw a molecule of a compound made from barium and sulfur
Answer Draw a molecule of a compound made from beryllium and chlorine Cl
Cl
Be
Draw a molecule of a compound made from barium and sulfur Ba
S
Writing Formulas What is the chemical formula of the molecule below? Na
N
Na
Na
Steps for solving 1. Count the number of each type of atom 2. Use subscritps to show how many of each type of atom there are 3. If there is only 1 of that type of atom, you don’t need to put a subscript
Answer What is the chemical formula of the molecule below? Na
N
Na
Na
Answer: Na3N
Steps for solving 1. Count the number of each type of atom 2. Use subscritps to show how many of each type of atom there are 3. If there is only 1 of that type of atom, you don’t need to put a subscript
Practice What is the chemical formula of the molecule below? Cl
Cl
Be
What is the chemical formula of the molecule below? Ba
S
Answer What is the chemical formula of the molecule below? Cl
Cl
Be
Answer: BeCl2 What is the chemical formula of the molecule below? Ba
S
Answer: BaS
Writing Formulas What is the formula for a compound made from boron and iodine?
Steps for solving 1. Draw the molecule 2. Use the molecule to figure out the formula
Practice What is the formula for a compound made from boron and iodine?
Answer: BI3
Steps for solving 1. Draw the molecule 2. Use the molecule to figure out the formula Want more practice? Check out “Check for Understanding: Polyatomic Groups.”
Drawing Molecules Draw a molecule of a compound made from nitrogen and sodium
Steps for solving 1. Identify how many bonds each type of atom makes
Drawing Molecules Draw a molecule of a compound made from nitrogen and sodium 3 bonds 1 bond
Steps for solving 1. Identify how many bonds each type of atom makes 2. Put the atom that makes the most bonds in the middle 3. Draw the correct number of bonds coming off the middle atom
Drawing Molecules Draw a molecule of a compound made from nitrogen and sodium N
3 bonds 1 bond
Steps for solving 1. Identify how many bonds each type of atom makes 2. Put the atom that makes the most bonds in the middle 3. Draw the correct number of bonds coming off the middle atom 4. Add the second type of atom at the end of each bond 5. Check that each atoms makes the correct number of bonds, make changes if needed
Drawing Molecules Draw a molecule of a compound made from nitrogen and sodium Na
N
Na
3 bonds 1 bond
Steps for solving
Na
1. Identify how many bonds each type of atom makes 2. Put the atom that makes the most bonds in the middle 3. Draw the correct number of bonds coming off the middle atom 4. Add the second type of atom at the end of each bond 5. Check that each atoms makes the correct number of bonds, make changes if needed
Practice Draw a molecule of a compound made from beryllium and chlorine
Draw a molecule of a compound made from barium and sulfur
Answer Draw a molecule of a compound made from beryllium and chlorine Cl
Cl
Be
Draw a molecule of a compound made from barium and sulfur Ba
S
Writing Formulas What is the chemical formula of the molecule below? Na
N
Na
Na
Steps for solving 1. Count the number of each type of atom 2. Use subscritps to show how many of each type of atom there are 3. If there is only 1 of that type of atom, you don’t need to put a subscript
Answer What is the chemical formula of the molecule below? Na
N
Na
Na
Answer: Na3N
Steps for solving 1. Count the number of each type of atom 2. Use subscritps to show how many of each type of atom there are 3. If there is only 1 of that type of atom, you don’t need to put a subscript
Practice What is the chemical formula of the molecule below? Cl
Cl
Be
What is the chemical formula of the molecule below? Ba
S
Answer What is the chemical formula of the molecule below? Cl
Cl
Be
Answer: BeCl2 What is the chemical formula of the molecule below? Ba
S
Answer: BaS
Writing Formulas What is the formula for a compound made from boron and iodine?
Steps for solving 1. Draw the molecule 2. Use the molecule to figure out the formula
Practice What is the formula for a compound made from boron and iodine?
Answer: BI3
Steps for solving 1. Draw the molecule 2. Use the molecule to figure out the formula Want more practice? Check out “Check for Understanding: Polyatomic Groups.”
