Properties of the elements are given below. Where would you locate the following in the periodic table?
(a) A soft metal stored under kerosene
(b) An element with variable (more than one) valency stored under water.
(c) An element which is tetravalent and forms the basis of organic chemistry.
(d) An element which is an inert gas with atomic number 2
(e) An element whose thin oxide layer is used to make other elements corrosion resistant by the process of "anodising".
Properties of the elements:
The elements show various different properties. The elements are grouped according to their properties.
Step 2:
(a) A soft metal stored under kerosene – Sodium(Na) having Group 1 and period 3
(b) An element with variable (more than one) valency stored underwater. – Phosphorus(P) having group 15 and period 3.
(c) An element that is tetravalent and forms the basis of organic chemistry – Carbon(C) having group 14 and period 2.
(d) An element which is an inert gas with atomic number 2 – Helium(He) having group 18 and period 1.
(e) An element whose thin oxide layer is used to make other elements corrosion-resistant by the process of anodizing – Aluminium(Al) having group 13 and period 3.