Naming Covalent Bonds. Do Now  Fill out the ‘Do Now’ section on your Do Now and Daily Evaluation Sheet  Rellene el 'Do Now' sección de su hoja de evaluación.

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Transcripción de la presentación:

Naming Covalent Bonds

Do Now  Fill out the ‘Do Now’ section on your Do Now and Daily Evaluation Sheet  Rellene el 'Do Now' sección de su hoja de evaluación de hacer ahora y Diario

Do Now  Describe how and why nonmetals form bonds with one another  Describa cómo y por qué los no metales forman enlaces con otros  Nonmetals form covalent bonds with one another by sharing valence electrons.  Nonmetals share electrons so that each atom has 8 valence electrons  Los no metales forman enlaces covalentes entre sí mediante el intercambio de electrones de valencia.  No metales comparten electrones para que cada átomo tiene 8 electrones de valencia

Table Activity 1.What is a prefix? 2.How are prefixes used in the following words  Antisocial antibiotic prefix: meaning:  Automatic autobiography prefix:meaning:  Bicyclebifocalsprefix:meaning:

Actividad en su mesa  ¿Qué es un prefijo?  ¿Cómo se utilizan los prefijos en las siguientes palabras  Antisocial antibióticoPrefijo significado:  autobiografía automática: Prefijo significado:  Bicicleta bifocales prefijo: significado:

Table Activity 1.What is a prefix? A word that goes at the beginning of another word to alter its meaning. Example: Pro (moving forward); progressive 1.How are prefixes used in the following words  Antisocial antibiotic prefix: antimeaning: against  Automatic autobiography prefix:automeaning: self  Bicyclebifocalsprefix:bimeaning: 2

Actividad en su mesa  ¿Qué es un prefijo?  Una palabra que va al principio de otra palabra para alterar su significado. Ejemplo: Pro (que se mueve hacia adelante); progresivo  ¿Cómo se utilizan los prefijos en las siguientes palabras  Antisocial antibióticoPrefijo antisignificado: contra  autobiografía automática: Prefijo autosignificado: uno mismo  Bicicleta bifocales prefijo:bi significado: 2

Stations Activity  Naming covalent compounds  You will now have 15 minutes to complete the questions at each station. The questions are listed below. Please use complete sentences.  Expectations  All questions attempted  All stations completed  On task  Quiet

Stations Actividad  Nombrar los compuestos covalentes  Ahora dispondrá de 15 minutos para completar las preguntas en cada estación. Las preguntas que se enumeran a continuación. Por favor, use oraciones completas.  Expectativas  Todas las preguntas se intentó  Todas las estaciones terminado  En la tarea  tranquilo

Stations Activity Wrap Up  Station 1  Which element is named first? Second?  How do you know which element to list first when naming a covalent compound?  estación 1  ¿Qué elemento es nombrado por primera vez? En segundo lugar?  ¿Cómo sabes qué elemento a la lista por primera vez cuando el nombramiento de un compuesto covalente?

Stations Activity Wrap Up  What does the prefix ‘mono’ mean?  ¿Qué significa 'mono' el prefijo significa?

Naming Covalent Compounds  Unlike ionic compounds, naming covalent compounds requires prefixes.  A diferencia de los compuestos iónicos, nombrar compuestos covalentes requiere prefijos.

Prefixes: Covalent Bonds Number of atomsPrefix 1mono 2di 3tri 4tetra 5penta 6hexa 7hepta 8octa 9nona 10deca

Naming Covalent Compounds Step 1: The first element in the formula is always named first using the name of the atom.  Example: CO 2  Carbon  Step 2: The second element is named by dropping the ending and adding – ide. Example: CO 2  The second atom is oxygen Change the ending – ide oxide

Naming Covalent Compounds  Step 3: Count how many of the first atom we have and how many of the second atom we have and add the correct prefix.  Example: CO 2  The first atom: carbon How many?: 1 Prefix: mono  The 2 nd atom: oxygen How many?: 2 Prefix: di

Naming Covalent Compounds  Step 3: Count how many of the first atom we have and how many of the second atom we have and add the correct prefix.  Example: CO 2 Name: carbon di oxide  Step 4: We combine the name of each element with the proper prefix. If there is only one of the first atom, then we do not have to write mono- in front of the element name.

Naming Covalent Compounds  Example: P 2 O 5 # of atomsPrefixName 1 st atom 2 nd atom (add -ide) Ex. P 2 O 5 IUPAC name:

Naming Covalent Compounds  Example: P 2 O 5 # of atomsPrefixName 1 st atom Phosphorous 2DiDiphosphorous 2 nd atom Oxygen 5Pentapentaoxide(add -ide) Ex. P 2 O 5 IUPAC name: diphsophorous pentaoxide

Naming Covalent Compounds  Example: N 2 O 4 # of atomsPrefixName 1 st atom 2 nd atom (add -ide) Ex. P 2 O 5 IUPAC name:

Naming Covalent Compounds  Example: N 2 O 4 # of atomsPrefixName 1 st atom Nitrogen 2DiDinitrogen 2 nd atom Oxygen 4TetraTetraoxide(add -ide) Ex. N 2 O 4 IUPAC name: Dinitrogen tetraoxide

Naming Covalent Compounds  Try it on your own!  Fill out the exit ticket on naming covalent compounds. Get through as many as you can before the end of class.