7-8 calculate the relative atomic mass of an element from the 1.12 relative abundances of its isotopes 10 understand that the Periodic Table is an arrangement of 1.13 elements in order of atomic number 10-11 deduce the electronic configurations of the first 20 1.14 elements from their positions in the Periodic Table 10 deduce the number of outer electrons in a main group 1.15 element from its position in the Periodic Table. Periodic Table 2.1 99 understand the group and period 100 recall the positions of metals and non-metals in the 2.2 Periodic Table 100 explain the classification of elements as metals or 2.3 on the basis of their electrical conductivity and the acid-base character of their oxides 9 understand why elements in the same group of the 2.4 Periodic Table have similar chemical properties 101 understand that the gases (Group 0) are a family of 2.5 inert gases and explain their lack of reactivity in terms of their electronic configurations. Group 1 102-103 describe the reactions of these elements with water and 2.6 understand that the reactions provide a basis for their recognition as a family of elements 2.7 104 describe the relative reactivities of the elements in Group 1 104 explain the relative reactivities of the elements in Group 1 in 2.8 terms of distance between the outer electrons and the nucleus Group 7 105 recall the colours and physical states of the elements at room 2.9 temperature 105 make predictions about the properties of other halogens in 2.10 this group 78 understand the difference between hydrogen chloride gas and 2.11 hydrochloric acid
1.12 calculate the relative atomic mass of an element from the relative abundances of its isotopes 7-8 1.13 understand that the Periodic Table is an arrangement of elements in order of atomic number 10 1.14 deduce the electronic configurations of the first 20 elements from their positions in the Periodic Table 10-11 1.15 deduce the number of outer electrons in a main group element from its position in the Periodic Table. 10 Periodic Table 2.1 understand the group and period 99 2.2 recall the positions of metals and non-metals in the Periodic Table 100 2.3 explain the classification of elements as metals or on the basis of their electrical conductivity and the acid-base character of their oxides 100 2.4 understand why elements in the same group of the Periodic Table have similar chemical properties 9 2.5 understand that the gases (Group 0) are a family of inert gases and explain their lack of reactivity in terms of their electronic configurations. 101 Group 1 2.6 describe the reactions of these elements with water and understand that the reactions provide a basis for their recognition as a family of elements 102-103 2.7 describe the relative reactivities of the elements in Group 1 104 2.8 explain the relative reactivities of the elements in Group 1 in terms of distance between the outer electrons and the nucleus 104 Group 7 2.9 recall the colours and physical states of the elements at room temperature 105 2.10 make predictions about the properties of other halogens in this group 105 2.11 understand the difference between hydrogen chloride gas and hydrochloric acid 78
chemistry_igcse_checklist.docx