Page 9 - ICSE Chemistry 8

Suggested Learning Resources Books of science/Chemistry • Charts/Models showing the • structure of atom • Valency cards • Charts depic ng the important and simple chemical equa ons in which the state of reactants and products is also shown Magnesium wire, match box • Limestone, tongs, test tube, burner • CuO, ZnO, Al 2 O 3 , litmus paper •

Suggested Transac onal Processes Discussing historical perspec ve of discovery of electrons, protons and neutrons. • Iden fying that a nucleus consists of protons and neutrons. Electrons are present in its extra Describing that atomic number (Z) is the number of protons in an atom. It is also equal to the Mass number: It is the sum of the number of protons and neutrons in an atom. • Organising compe ons to recapitulate the symbols of elements in the class by using valency cards. (symbols and valency of fi rst

nuclear part. number of electrons in an atom. • Revisi ng earlier concepts. Building on children’s previous learning. elements/radicals under the guidance of teacher. equa on. • Giving prac ce in balancing simple equa ons. chemical equa on. with examples using chemical equa ons. Showing burning of a magnesium ribbon.  Synthesis CaO + H 2 O  Ca(OH) 2 Ca(OH) 2 + CO 2  CaCO 3 + H 2 O C + O 2  CO 2  Decomposi on Decomposi on of CaCO 3 , PbO.  Displacement Displacement of Cu from CuSO

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Learning Outcomes Students will be able to describe that an atom • consists of electrons, protons and neutrons; • defi ne atomic number and mass number; discuss valency of • elements and radicals with respect to the number of hydrogen atoms combining with one atom of the element. Students will be able to recall the symbols of • erent elements; diff derive the formulae of • compounds on the basis of valencies of elements and radicals; write chemical equa on • of a reac on; • bal

Fundamental subatomic par cles present in an reactants and products, nature of the chemical The metal that displaces the metal ion from

Key Concepts atom: electrons, protons, neutrons Nucleus and extra nuclear parts Atomic number and mass number Symbols of elements Formulae of compounds • Chemical equa ons (from word equa ons) Law of conserva on of mass Balancing simple equa ons Relate the law to the balancing of simple • Informa on gathered from a chemical • Limita ons of a chemical equa on: Catalyst, condi ons for the reac on, state of the reac on are not gathered from the equa on.  Double displacement  In reac vity series

• • • Integra on Physics • • • • • equa ons equa on Integra on Mathema cs, Physics Types of reac ons: •  Combina on  Decomposi on  Displacement • Reac vity series:  • • reac ons • Neutralisa on reac on • Classifi ca on of oxides  Acidic  Basic  Amphoteric  Neutral in nature. amphoteric oxides.

Theme 4. Atomic Structure 5. Language of Chemistry 6. Chemical Reac ons