Groups in The Periodic Table 8 1 2 3 4 5 6 7 Transition Metals
Periods in The Periodic Table
Metals and Non-metals in the Periodic Table The periodic table is a list of all the known elements which are arranged according to the similarities in their properties. Non-metals are mostly on the right. 8 Metals are on the left and in the centre. 1 2 3 4 5 6 7 Transition Metals
Who??? Dmitri Mendeleev was Russian Chemist In 1869 he constructed the Periodic Table
Mendeleev TASK 1 Write down at least 3 things you have learnt about Mendeleev and his Periodic Table from the video.
How Did He do it? He arranged elements in order of increasing Atomic Mass He put elements with similar properties into vertical columns – called ‘groups’ He arranged elements into rows called ‘periods’ He left gaps in his table for elements to be discovered
Making Predictions Used gaps in the table to make predictions about properties of undiscovered elements For Example: