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Earn 100

Give the names of 4A group elements
Important Questions on Periodic Table and Periodicity in Properties
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Among the following elements, _____ does not fit in Dobereiner's traid.

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The horizontal rows in a periodic table are called _____.

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_____(Mendeleev/Moseley) law states that the properties of elements are periodic function of their atomic masses.

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The element with atomic number is hard and forms acidic oxide and covalent halide.The element belongs to _____ category.

