Page 1Shells of electrons - ReviewIntroduction the concept of the arrangement of electrons in atoms in shells and correlation of the shell occupancy of an element with its position in the periodic table (5 supporting questions)
Page 5Valence electrons - ReviewIntroduction to the concept of core and valence electrons and correlation of the number of each with the position of the element in the periodic table (9 supporting questions)
Page 9Electrons in subshells - ReviewIntroduction to s, p, d and f subshells including the number and type of subshells in each electron shell (6 supporting questions)
1 marksPage 12Blocks in the periodic tableIntroduction to the orbital number and electron occupancy for the subshells and correlation of the blocks in the periodic table with subshell occupancy for the valence electrons (9 supporting questions)