86 questions in Chapter 5 Periodic Classification of Elements - HI MCQ!

Which of the following elements does not lose an electron easily?

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The elements a, b, c, d and e have atomic number 9, 11, 17, 12 and 13 respectively. which pair of elements belongs to the same group?

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An element has an atomic number of 15 with which of the following elements will it show similar chemical properties?

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The family of elements having seven electrons in the outermost shell is ______?

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Elements belonging to groups 1 to 17 are called __________?

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In Mendeleev’s Periodic Table, gaps were left for the elements to be discovered later. Which of the following elements found a place in the Periodic Table later?

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The atom of an element has electronic con-figuration 2, 8, 7. To which of the following elements would it be chemically similar?

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An element ‘A’ belongs to the third period and group 16 of the Periodic Table. Find out the valency of A?

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The lightest liquid metal is?

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Chlorine (17) belongs to which group and period?

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