Movie Information: Periodic Table & Chemical Bonding PDF
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Lukas Ekström
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This document provides information about a movie, likely a science documentary, that discusses the periodic table and different types of chemical bonding. The summary covers topics such as the arrangement of elements, the differences between groups and periods, and explanations of various bonding types like covalent and ionic bonds.
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What is the movie about?/Vad handlar filmen om? Write information, new words and what they mean./Skriv information, nya ord och vad de betyder. The movies/filmerna. Periodiska systemet (del 1): The first one was about the periodic table and how it wor...
What is the movie about?/Vad handlar filmen om? Write information, new words and what they mean./Skriv information, nya ord och vad de betyder. The movies/filmerna. Periodiska systemet (del 1): The first one was about the periodic table and how it works. They talked about how Dmitri Mendelejev invented the best way to sort the elements, which is the periodic table. In one of the categories the elements are sorted into so-called groups. All of these elements in each group have two things in common. First they are kinda similar to each other. In the group with alkali metals we have lithium which is pretty similar to sodium and fluorine is similar to borium. All of these groups all have the same amount of electrons in their outer shell. So for example the whole first row has one electron and so on and so forth. Those electrons are called valence electrons. This was only vertical. Let's get to the horizontal groups who are called periods and these have one major thing in common. That is, the first horizontal row has one electron shell and the second row has two electron shells and so on. Moving on to the last one. It is divided up into metals,nonmetals and metalloids.Metals are on their own,nonmetals are on their own (except hydrogen) and metalloids are squeezed in between these two. The last thing mentioned is what we can know about an atom by just looking at the periodic table. We get to know its chemical symbol,the atomic number which determines the amount of protons and the other number is the atomic mass. That is just the total amount of protons and neutrons in an atom. Periodiska systemet (del 2): This second video talks about three different groups. One of them we have already mentioned and two of them are completely new. The last thing they bring up is how covalent bonds work and what they do. To kick off with the three different groups is alkali metals. They only have one valence electron and will all gladly lose that one electron because then they reach their absolute max. Because they have two electrons in their inner shell. But hydrogen is different. They want to pair up with other hydrogen atoms to reach their max. The second one is halogens. Halogens are extremely reactive and have seven valence electrons. They react as soon as they get next to another substance and take an electron as fast as they get a chance. Because they only need one more electron. Then we got nobel gases. They have eight valence electrons and are not reactive. They are also what every other element wants to reach. The last part about covalent bonds is that different elements have different valence electrons so they find a partner or more to get eight valence electrons by sharing. Kemiska bindningar 1 - Jonbindning: The majority of this video is about ionic bonding and first off we learned about their different shells. The innermost shell is called the K shell and has a max of two electrons. Then we got the L and M shell which can have a maximum of eight electrons. Then they are filled in alphabetical order. Atomen är som stabilast om alla skal är fulla. Den kan få 8 elektroner på olika sätt. Dela,ge eller ta. En jon är en atom som har gett eller tagit upp en eller flera elektroner. En atom har ingen laddning medan en jon har en laddning. Om det finns flera natriumjoner och flera kloridjoner nära varandra så bildar de natriumklorid. Om man ska försöka smälta det måste man värma till 800 grader celsius eftersom den är så tålig. De bindningar som håller ihop joner kallas för jonbindningar. Jonförening är när atomer sitter ihop av jonbindningar. Kemiska bindningar 2 - Molekyl- och metallbindning: In this video we get to know about the three ways of bonding. Ionic bonding,molecule bonding and metallic bonding. Ionic bonding works so that if an atom has the power to take electrons from other atoms then they build ions and that is how ionic bonding works. Molecule bonding is just covalent bonding. Metallic bonding is when all the atoms are just one big unit and they all share their valence electrons and all the valence electrons can wander around freely in the metal piece.
