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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1.15 The diagram shows an outline of part of the Periodic…
1.15 The diagram shows an outline of part of the Periodic Table. (1) Right-click on the button to open the data booklet in a new tab. Which statement about elements X, Y and Z is not correct?
1.4 Which atom has twice as many neutrons as protons? (1)…
1.4 Which atom has twice as many neutrons as protons? (1) Right-click on the button to open the data booklet in a new tab.
1.10 The diagram shows that two gases are formed when con…
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
1.3 Element Y has 10 protons. Element Z has 11 protons….
1.3 Element Y has 10 protons. Element Z has 11 protons. Which statement is correct? (1)
1.18 Five elements have proton numbers 10, 12, 14, 16 and…
1.18 Five elements have proton numbers 10, 12, 14, 16 and 18. What are the proton numbers of the three elements that form oxides? (1)
1.19 Which statement about aluminium is not correct? (1)
1.19 Which statement about aluminium is not correct? (1)
What is the generic name?
What is the generic name?
Which of the following statements are true concerning the ro…
Which of the following statements are true concerning the role of the nurse in drug testing? Select all that apply
Which of the following is a characteristic of a Schedule IV…
Which of the following is a characteristic of a Schedule IV drug?