Periodic Classi...

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

Which of the given elements A, B, C, D and E with atomic number 2, 3, 7, 10 and 30 respectively belong to the same period?

The elements A, B, C, D and E have atomic number 9, 11, 17, 12 and 13 respectively. Which pair of elements belong to the same group?

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

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

Which among the following elements has the largest atomic radius?

Which of the following elements would lose an electron easily?

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

Which of the following are the characteristics of isotopes of an element?

(i) Isotopes of an element have same atomic masses

(ii) Isotopes of an element have same atomic number

(iii) Isotopes of an element show same physical properties

(iv) Isotopes of an element show same chemical properties

Which one of the following does not increase while moving down the group of the periodic table?

Which of the following set of elements is written in order of their increasing metallic character?

Up to which element was the Law of Octaves found to be applicable?