showing two electrons in the lowest energy level, eight in the second energy level and one in the third energy level. 5.1.2 The periodic table Spec Suggested Summary of the specification Learning outcomes Opportunities to develop Opportunities to develop and Self/peer ref. timing content scientific communication skills apply practical and enquiry assessment What most students should (hours) skills be able to do Opportunities and resources Reference to past questions that indicate success 5.1.2.1 The elements in the Explain how the position 0.5 Describe the position of an Give students collections of Video clip: periodic table are arranged of an element in the element in the periodic different elements from one in order of atomic (proton) periodic table is related to and how it is related to the group and ask them to put it YouTube: number and so that the arrangement of arrangement of electrons in its in an order. elements with similar electrons in its atoms and atoms and the atomic number. properties are in columns, hence to its atomic Students can then join up YouTube: known as groups. The table number. with other groups and is called a periodic table continue to arrange cards in because similar properties Predict possible reactions order. occur at regular intervals. and probable reactivity of elements from their Elements in the same positions in the periodic group in the periodic table table. have the same number of
showing two electrons in the lowest energy level, eight in the second energy level and one in the third energy level. 5.1.2 The periodic table Spec ref. Summary of the specification content Learning outcomes What most students should be able to do Suggested timing (hours) Opportunities to develop scientific communication skills Opportunities to develop and apply practical and enquiry skills Self/peer assessment Opportunities and resources Reference to past questions that indicate success 5.1.2.1 The elements in the periodic table are arranged in order of atomic (proton) number and so that elements with similar properties are in columns, known as groups. The table is called a periodic table because similar properties occur at regular intervals. Elements in the same group in the periodic table have the same number of Explain how the position of an element in the periodic table is related to the arrangement of electrons in its atoms and hence to its atomic number. Predict possible reactions and probable reactivity of elements from their positions in the periodic table. 0.5 Describe the position of an element in the periodic and how it is related to the arrangement of electrons in its atoms and the atomic number. Give students collections of different elements from one group and ask them to put it in an order. Students can then join up with other groups and continue to arrange cards in order. Video clip: YouTube: YouTube: