RSC Periodic Table Wallchart, 2A0 - Double Poster Pack

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Describe and model the structure of the atom in terms of the nucleus, protons, neutrons and electrons; comparing mass and charge of protons neutrond and electrons. Odd one out’ activities require students to justify their choices, providing you within an insight into their thinking. For example, ask them to look at the images above and decide which one doesn’t fit. Progression to 14–16

Commercial use of the Images will be charged at a rate based on the particular use, prices on application. In such cases we would ask you to sign a Visual Elements licence agreement, tailored to the specific use you propose. So, if you wanted to buy some butter, you would need to know this is a dairy product and go to the dairy aisle.The mass of an atom relative to that of carbon-12. This is approximately the sum of the number of protons and neutrons in the nucleus. Where more than one isotope exists, the value given is the abundance weighted average.

The position of hydrogen can often lead to confusion as different versions of the periodic table place it differently: at the top of group 1 or 7 or somewhere in between. The point to emphasis here is that hydrogen is an anomaly. It is a non-metal with an electronic structure similar to group 1 metals. Therefore chemists sometimes struggle to know where to place it. Analogies are a powerful way to help students understand the complexities of chemistry. We can use different classification systems from everyday life to help students understand how the periodic table classifies elements. Thomas Jefferson National Accelerator Facility - Office of Science Education, It’s Elemental - The Periodic Table of Elements, accessed December 2014. Tables of Physical & Chemical Constants, Kaye & Laby Online, 16th edition, 1995. Version 1.0 (2005), accessed December 2014. You can also use the periodic table to develop students’ research and presentation skills. Assign each student a different element and ask them to find out and present key pieces of information to the group. Together you can build a class periodic table with this work. The RSC interactive periodic table is a good place to start researching.The elements in a group show patterns in their physical properties such as melting or boiling point, thermal conductivity and density. They have similar chemical reactions with, for example, oxygen.

The percentage of the world reserves located in the country with the largest reserves. The higher the value, the larger risk there is to supply.A horizontal row in the periodic table. The atomic number of each element increases by one, reading from left to right. The percentage of an element produced in the top producing country. The higher the value, the larger risk there is to supply. There are lots of other resources available for consolidation and revision, such as Periodic table bingo, Elemental Su Duko, Element top trumps and the Periodic table game. Common misconceptions Now take a look at a group of metals or non-metals such as the alkali metals or halogens. Demonstrate how the properties change as you go down the group. This can be done by looking up data such as melting points, and density and/or with practical demonstrations. Encourage students to look for patterns in reactivity and compare this reactivity to the position of the element in the periodic table. J. S. Coursey, D. J. Schwab, J. J. Tsai, and R. A. Dragoset, Atomic Weights and Isotopic Compositions (version 4.1), 2015, National Institute of Standards and Technology, Gaithersburg, MD, accessed November 2016.