Why do elements in the same group of the Periodic Table have similar chemical reactions?
Their atoms have the same number of shells.
Their atoms have the same atomic number.
Their atoms have the same number of neutrons.
Their atoms have the same number of outer electrons.
122 exam-style questions on OCR GCSE Chemistry 2.2 Bonding, covering 2.2.1 Metals, non-metals and the Periodic Table, 2.2.2 Types of chemical bonding and dot and cross diagrams, 2.2.3 Limitations of bonding models, and 2.2.4 Reactivity, atomic number and the modern Periodic Table. Each one has a worked solution and a mark scheme showing where the marks go.