Class 8 General Science Notes: - Unit-5 - The Periodic Table of Elements

A. MCQs (Choose the Correct Answers).


1. Which of the following groups contains alkali metals?

... Answer is a. IA
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2. Which of the following elements is not an alkali metal?




... Answer is d. Mg
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3. An element has three electrons in its outermost shell. In which group of the Periodic Table it is likely to be found?


... Answer is a. Group IA.
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4. 4. Which of the following elements is a metalloid?




... Answer is d. Silicon
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5. Lithium is in the same group as




... Answer is d. Ethanol.
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6. Which of the following is a halogen?




... Answer is b. Sodium.
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7. How many elements are present in the first period?




... Answer is a. 2
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8. How many electrons are present in the outermost shell in Group IIIA elements?




... Answer is d. 8
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9. Which of the following group contains noble gases?


... Answer is d.  0
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10. Period number of neon (atomic number 10) is:




... Answer is d. 2
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