PASSAGE - 2 : In periodic table there are nearly 110 elements are present majority of elements are present in solid state. There is no separate placement for isotopes of elements in periodic table. The atomic weight of an element is the average atomic weight of isotopes. In periodic table the liquid elements at room temperature are

PASSAGE - 2 : In periodic table there are nearly 110 elements are pres

1.	PASSAGE - 2 : In periodic table there are nearly 110 elements are present majority of elements are present in solid state. There is no separate placement for isotopes of elements in periodic table. The atomic weight of an element is the average atomic weight of isotopes. In periodic table the liquid elements at room temperature are
Answer» CD,`Cl_2` `H_2O,HG` `Hg,Br_2` `O_2N_2` ANSWER :B