New experimental evidence may lead to a scientific model being changed or replaced.4.1.1.3 The development of the model atom.4.1.1 A simple model of the atom, symbols, relative atomic mass, electronic charge and isotopes.4.1 Atomic structure and the periodic table.C2.2.3 describe how discovery of new elements and the ordering elements by atomic number supports Mendeleev’s decisions to leave gaps and reorder some elements.C2.2 What does the Periodic Table tell us about the elements?.C2.1.1 describe how and why the atomic model has changed over time to include the main ideas of Dalton, Thomson, Rutherford and Bohr.C2.1 How have our ideas about atoms developed over time?.C2.2i explain in terms of atomic number how Mendeleev’s arrangement was refined into the modern Periodic Table.C1.2a describe how and why the atomic model has changed over time.Very brief outline of the historical development of atomic theory (outline principles only mathematical treatment not required): Dalton: atomic theory.Comparison of Mendeleev’s table with the modern periodic table.History of the periodic table, including the contributions of Dobereiner, Newlands, Mendeleev and Moseley.History of the idea of elements, including the contributions of the Greeks, Boyle, Davy and Moseley. Develop and use models to describe the nature of matter demonstrate how they provide a simple way to to account for the conservation of mass, changes of state, physical change, chemical change, mixtures, and their separation. Appreciate how scientists work and how ideas are modified over time. interpret, analyse and present information in oral, written and ICT formats, for example prepare a PowerPoint presentation or a poster about acid rain and its causes, its environmental impact and society’s responsibility to minimise it on an….Unit C1: Structures, Trends, Chemical Reactions, Quantitative Chemistry and Analysis.1.6.4 demonstrate knowledge and understanding that a group is a vertical column in the Periodic Table and a period is a horizontal row and.1.6.2 demonstrate knowledge and understanding of how scientific ideas have changed over time in terms of the differences and similarities between Mendeleev’s Periodic Table and the modern Periodic Table.1.6.1 describe how Mendeleev arranged the elements in the Periodic Table and left gaps for elements that had not been discovered at that time, and how this enabled him to predict properties of undiscovered elements.Unit 1: Structures, Trends, Chemical Reactions, Quantitative Chemistry and Analysis.participate in discussions, debates and interviews, for example debate disposing of polymers by incineration or landfill, or discuss the environmental effects of fossil fuel combustion.Elements are arranged in the periodic table in order of increasing atomic number.Elements in the Periodic Table are arranged in order of increasing atomic number.Atomic structure and bonding related to properties of materials.RSC Yusuf Hamied Inspirational Science Programme.Introductory maths for higher education.The physics of restoration and conservation.
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