Question 1 :
Which type of elements are shown in bottom of periodic table?

Question 5 :
Which of the element of group 17 is solid in nature?

Question 12 :
18.................elements are present on the right side of the periodic table

Question 20 :
According to the Modern Periodic Law, physical and chemical properties of element are periodic functions of their............

Question 21 :
Which of the following is the correct set of elements to Dobereiner's triads?

Question 22 :
How many electrons are present in the outermost orbit of alkaline earth metals?

Question 24 :
Which of the following statement(s) about the modern periodic table are incorrect?<br>IThe elements in the modern periodic table are arranged on the basis of their decreasing atomic number.<br>IIThe elements in the modern periodic table are arranged on the basis of their increasing atomic masses.<br>IIIIsotopes are placed in adjoining group (s) in the periodic table.<br>IVThe elements in the modern periodic table are arranged on the basis of their increasing atomic number.

Question 28 :
The number of electrons in the valence shell of an atom represents its........