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The Periodic Table
Quick questions on Transition elements and noble gases explained: O-Level Chemistry
7short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What are the transition elements?Show answer
The transition elements are the block of metals in the centre of the Periodic Table (such as iron, copper, zinc, nickel and chromium). They share a set of characteristic properties:
What are contrasting transition metals with Group I metals?Show answer
The contrast with the alkali metals is a favourite exam question:
What are the noble gases?Show answer
The noble gases (helium, neon, argon and the rest of Group 0) are very unreactive gases. The reason is their electronic structure: they have a full outer shell of electrons (helium has , the others have ). With a complete, stable outer shell, they have no tendency to gain, lose or share electrons, so they do not readily form bonds or react.
What are uses of the noble gases?Show answer
Their unreactivity and other physical properties give them useful applications:
What is q1?Show answer
State two physical properties typical of transition metals. [2 marks]
What is q2?Show answer
Explain why the noble gases are unreactive. [2 marks]
What is q3?Show answer
Give one chemical property of transition metals that Group I metals do not show. [1 mark]
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