Yearly Archives: 2020

Question 1 Aluminium and thallium are elements in Group 3 of the Periodic Table. Both elements form compounds and ions containing chlorine and bromine. Write an equation for the formation…

Question 1 Aluminium and thallium are elements in Group 3 of the Periodic Table. Both elements form compounds and ions containing chlorine and bromine. Write an equation for the formation…

Explain why helium’s first ionisation energy is much higher than hydrogen’s. Explain why lithium has lower ionisation energy than helium even though lithium has 1 proton more. Why does the…

Atomic Structure Question 1 Write the electronic configuration for: C, N3-, Fe2+, Cu, Cu+, I and Pb. Question 2.  Put the following atoms/ions in order of decreasing size. Explain your…

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Atomic Structure Electronic Structure Equilibria Energetics Acids and Bases Rates of Reactions Solutions Electrochemistry