Major changes include a more topic centric approach. Noble gases are the only elements that exist as single atoms unattached to any other. Learn about and revise the noble gases in group 0 of the periodic table with this bbc bitesize gcse chemistry edexcel study guide. The noble gases are almost entirely unreactive because they all have a full outer shell of electrons and are not interested in reacting with other substances. The noble gases are in group 8 or group 0 and have very low melting and boiling points. The noble gases are in group viii or group o and have very low melting and boiling points.
A mnemonic is a memory aid used to improve long term memory and make the process of. Gas chemistry ccea the earth atmosphere is a mixture of gaseous elements and compounds. We can prepare samples of common gases such as hydrogen, oxygen and carbon dioxide in the laboratory and. This electronic configuration is extremely stable so these elements are unreactive and are inert. Helium, neon, argon, krypton, xenon, radon, oganesson. The elements in group 0 are called the noble gases. Their uses depend on their inertness, low density and nonflammability. Physical properties of the noble gases group 0 the noble gases. Chlorine is used to kill bacteria in swimming pools. Chemically inert news newspapers books scholar jstor august 2017. First book on memory aids for chemistry by rishabh jain and sambhav jain.
Learn about and revise the noble gases in group 0 of the periodic table with this bbc bitesize gcse combined science edexcel study guide. They belong to the right hand column in the periodic table. But noble gases already have full outside shells he 2, ne 2. In chemistry, the term chemically inert is used to describe a substance that is not chemically. Check out more of our edexcel gcse science videos and revision resources at. I have made a revision page for each mini topic, which can now be found on the topics drop down menu. The noble gases were previously known as inert gases because of their perceived lack of. They belong to the righthand column in the periodic table.
The group 0 elements, the noble gases, are all unreactive nonmetal gases. Physical properties of the noble gases group 0 the. Because noble gases have full outside shells their atoms dont even join up to make molecules in the way that oxygen and nitrogen form o 2 and n 2 molecules. Gcse chemistry the periodic table answers and mark schemes questionsheet 1 a i noble inertrare gases 1 ii two out of. Describes the contents of the book gcse chemistry by jim clark. The forces between the atoms are very weak and so they are gases. Sodium chloride is used to fl avour and preserve food. The noble gases are all chemically unreactive which means they are inert.
Chemical properties of the noble gases group 0 the. Chemical series of the periodic table alkali metals alkaline earths lanthanide actinidea transition metals poor metals metalloids nonmetals halogens. This video relates to the edexcel 91 gcse chemistry specification which will be examined for the first time in 2018. Gcse sciencethe periodic table wikibooks, open books. Aqa gcse chemistry for combined science student book sample. Substances that are very unreactive are called chemically inert.
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