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Periodic Table of the Elements : Alkali Metals Classification Périodique Des Éléments : Métaux Alcalins

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Periodic Table of the Elements : Alkali Metals Classification Périodique Des Éléments : Métaux Alcalins Ressource provenant du site http://lvpc.dane.ac-versailles.fr Periodic Table of the Elements : Alkali Metals Classification périodique des éléments : métaux alcalins Auteur(s) : Cécile Kressmann Adresse de messagerie : [email protected] Niveau : BTS Métiers de la Chimie Type d’enseignement : ESLV Periodic Table of the Elements : Alkali Metals Page 1 Ressource provenant du site http://lvpc.dane.ac-versailles.fr Attribution - Pas d’Utilisation Commerciale - Partage dans les Mêmes Conditions Periodic Table of the Elements : Alkali Metals Auteur(s) : Cécile Kressmann Adresse de messagerie : Classification périodique des [email protected] Établissement : Lycée Pierre-Gilles de Gennes ENCPB éléments : métaux alcalins Académie : Paris Présentation Niveau d’enseignement A partir de vidéos, d’une chanson, cette ressource propose d'étudier le tableau Niveau : BTS Métiers de la Chimie périodique et en particulier les métaux alcalins. Type d’enseignement : ESLV Sources : Référentiel, programme https://www.youtube.com/watch?v=IgA37CNa7Ow Synthèse chimique https ://www.youtube.com/watch?v=OduTDUGeAXE Exploiter les structures des espèces chimiques Classification périodique des éléments https://www.youtube.com/watch?v=m55kgyApYrY https://www.youtube.com/watch?v=uixxJtJPVXk Compétences travaillées https://www.youtube.com/watch?v=l9z5-mJ8NZk Étapes de la séquence S’approprier ■■■□ Analyser ■■■□ Séance 1 : durée 1h ■■□□ Réaliser Activité vidéo + questions Valider ■□□□ Bibliographie de Dmitri Mendeleïev Séance 2 : durée 1h Niveaux de compétence en langue Activité vidéo Etude des éléments et de la structure Langue : anglais de la classification périodique à partir Écouter ☐ A2 ☐ B1 ☑ B2 de la chanson de Tom Lehrer Comprendre Lire ☑ A2 ☐ B1 ☐ B2 Séance 3 : durée 1h Prendre part à une conversation ☐ A2 ☑ B1 ☐ B2 Parler Activité vidéo + questions S’exprimer oralement en continu ☑ A2 ☐ B1 ☐ B2 Réaction des métaux alcalins (Na, K, Écrire Écrire ☐ A2 ☑ B1 ☐ B2 Rb, Cs) avec l’eau Séance 4 : durée 1h Activité vidéo + questions Mots clés Etude en laboratoire, des métaux Anglais, chimie, chemistry, ESLV, periodic table, alkali metals, Brainiac, alcalins (Li, Na, K, Cs) Dmitri Mendeleev, Song of elements Séance 5 : durée 1h Activité vidéo + questions Mise en évidence de l’obtention d’une solution basique lors de la réaction des métaux alcalins avec l’eau Periodic Table of the Elements : Alkali Metals Page 2 Ressource provenant du site http://lvpc.dane.ac-versailles.fr Table of Contents For students ........................................................................................................................................... 4 Part 1 : Dmitri Ivanovitch Mendeleïev ............................................................................................................................. 5 Part 2 : The element song of Tom Lehrer ......................................................................................................................... 6 Part 3 : Brainiac Alkali Metals ......................................................................................................................................... 8 Part 4 : Alkali Metals ....................................................................................................................................................... 9 Part 5 : Reactions of sodium and potassium with water .................................................................................................. 10 For teachers ......................................................................................................................................... 11 Part 1 : Dmitri Ivanovitch Mendeleïev ........................................................................................................................... 12 Part 2 : The element song of Tom Lehrer ....................................................................................................................... 13 Part 3 : Brainiac Alkali Metals ....................................................................................................................................... 16 Part 4 : The Alkali Metals .............................................................................................................................................. 17 Part 5 : Reactions of sodium and potassium with water .................................................................................................. 18 Periodic Table of the Elements : Alkali Metals Page 3 Ressource provenant du site http://lvpc.dane.ac-versailles.fr For students Periodic Table of the Elements : Alkali Metals Page 4 Ressource provenant du site http://lvpc.dane.ac-versailles.fr Part 1 : Dmitri Ivanovitch Mendeleïev https://www.youtube.com/watch?v=IgA37CNa7Ow Dmitri Mendeleïev Look for the following information about Dmitri Ivanovitch Mendeleïev on the internet or in the library: Give his date of birth? Which country was he from? When did he present his table of elements? What principle was the table based on? How many elements were known at that time? What is one amazing thing about Mendeleev? With whom was he obsessed? What are the other topics on which he worked? Did he obtain the Nobel Prize in 1906 for the periodic table? What did he obtain then? Periodic Table of the Elements : Alkali Metals Page 5 Ressource provenant du site http://lvpc.dane.ac-versailles.fr Part 2 : The element song of Tom Lehrer Using the video : Elements by Tom Lehrer song : The Element Song De weirdalrocks962 https ://www.youtube.com/watch?v=OduTDUGeAXE Answer the following questions: 1) How many elements are there in this song, and how many elements have been discovered since Tom Lehrer sang this song in 1961? 2) What did he just say before the last period? (Put the sentence in order) Hope – it’s going to be – taking – quiz next period – notes because – a short – you’re all 3) What did he say at the end of the song? (Put the sentence in order) to Harvard, - they haven’t been discovered. – These are – and there may be – the only ones of which – many others but – the news has come 4) Take 10 different coloured pens and colour the different groups of elements by setting the legend. 5) Specific regions of the periodic table can be referred to as “blocks” in recognition of the sequence in which the electron shells of the elements are filled. Each block is named according to the subshell in which the “last” electron notionally resides. Explain the 4 different blocks you know? Periodic Table of the Elements : Alkali Metals Page 6 Ressource provenant du site http://lvpc.dane.ac-versailles.fr Periodic Table of the Elements : Alkali Metals Page 7 Ressource provenant du site http://lvpc.dane.ac-versailles.fr Part 3 : Brainiac Alkali Metals Using the video : Brainiac Alkali Metals https://www.youtube.com/watch?v=m55kgyApYrY Answer the following questions : 1) What is the purpose of this video? 2) What does the Brainac group intend to avoid? 3) What does the young man say about rubidium? (put the words in the right order) It might not look like – in an argon atmosphere – just for safety – reactive metal, - in its gas tube, - but it’s a highly – it’s sealed – much reactive 4) Explain why it is necessary to seal rubidium? 5) Can you describe the vessel they use for the reaction? Was the reaction impressive? 6) How many grams of rubidium reacted? 7) Why is cesium introduced as the “emperor of alkali metals, particularly nasty for any time”? (put the words in the right order) - of hydrogen gas – As cesium – should produce quite an explosion – the rapid generation – sinks in the water- Periodic Table of the Elements : Alkali Metals Page 8 Ressource provenant du site http://lvpc.dane.ac-versailles.fr Part 4 : Alkali Metals Using the video : Alkali metals in water, accurate! https://www.youtube.com/watch?v=uixxJtJPVXk Answer the following questions: 1) What’s happening with lithium? (Put the sentence in the right order) The metal – water – giving – floats on the – an hydrogen gas – and reacts with it 2) What is the general reaction between water and alkali metals (sodium)? 3) Now for potassium, describe the action (Put the sentence in the right order) The heat – lilac flame – gas catches fire – by the reaction – giving out – that the hydrogen - and it burns with a – is produced so quickly 4) What is the general conclusion about the reactivity of the elements of the group? (Put the sentence in the right order) Things – go down – more terrifying – gradually – become – the group – as we 5) What happened to the crystallizing dish when cesium reacted with water? Periodic Table of the Elements : Alkali Metals Page 9 Ressource provenant du site http://lvpc.dane.ac-versailles.fr Part 5 : Reactions of sodium and potassium with water Using the video : Reactions of sodium and potassium with water – Professor Bob Burk : Experiment demos. https://www.youtube.com/watch?v=l9z5-mJ8NZk Answer the following questions: 1) Where do the alkali metals get their name from? 2) Which statement does the professor make? 3) What is the use of oil? 4) Does sodium look metallic? What do we have to do in order to recognize the metallic aspect? 5) What’s the difference between a metal like iron and a metal like sodium? 6) What did he add to the water? What is the use of it? 7) Which anion is responsible for the pink colour of the solution? 8) What is the formula of the gas that catches fire? Can you give the equation of the explosive reaction? 9) What’s the difference between sodium and potassium? 10) What happens when
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