1.6 The electronic structures of atoms P and Q are shown….
1.6 The electronic structures of atoms P and Q are shown. (1) Right-click on the button to open the data booklet in a new tab. P and Q react to for an ionic compound. What is the formula of the compound? Right-click on the button to open the data booklet in a new tab.
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1.10 The diagram shows that two gases are formed when concentrated hydrochloric acid is electrolysed using inert electrodes. (1) Right-click on the button to open the data booklet in a new tab. Which row correctly describes the colours of the gases at the electrodes? anode (+ve) cathode (–ve) A colourless colourless B colourless yellow-green C yellow-green colourless D yellow-green yellow-green
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