PDF chapter test TRY NOW
Answer the following questions:
Answer variants:
Yes, Dobereiner’s triads also existed in the columns of Newland’s Octaves.
Be (atomic number \(4\)) and Ca (atomic number \(20\)) have similar electronic configuration, i.e. two electrons in outermost shells.
Copper and Zinc
copper, helium, lithium, beryllium, boron, carbon, nitrogen, oxygen, fluorine and neon.
1. Did Dobereiner’s triads also exist in the columns of Newlands’ Octaves ? Compare and find out.
2. Name two elements you would expect to show chemical reactions similar to magnesium. What is the basis for your choice?
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