Q9 of 52 Page 38

Which of the following statements about the Modern Periodic Table is correct?

The periodic table has seven rows called periods. It has 18 columns called groups or families. Elements of the same group have similar properties. For example, group 18 consists of the noble or insert gases. These elements (helium, neon, argon, krypton, xenon, radon) have 8 valence electrons.

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Where would you locate the element with electronic configuration 2, 8 in the Modern Periodic Table?

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An element which is an essential constituent of all organic compounds belongs to

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Which of the following is the outermost shell for elements of period 2?

 11

Which one of the following elements exhibit maximum number of valence electrons?