Chemistry
State the position of the following in the periodic table:
(a) Alkali metals
(b) Alkaline earth metals
(c) Halogens
(d) Aluminum
Answer
(a) Alkali metals — Group I (IA), the first column on the left of the periodic table.
(b) Alkaline earth metals — Group 2 (IIA), the second column on the left of the periodic table
(c) Halogens — Group 17 (VII A)
(d) Aluminium — Group 13 (III A), present on the right of periodic table.
Related Questions
Name the metal which is a constituent of:
(a) blood pigment
(b) plant pigment
Give the importance of the following in living beings:
(a) Nitrogen
(b) Hydrogen
(c) Carbon
Name:
(a) a liquid non-metal
(b) two metalloids
(c) a metal which do not corrode easily
(d) two metals which react with cold water
(e) a non-metal which can form a positive ion.
(f) a non-metal which shows reducing property.
From the list of characteristics given below, select the five which are relevant to non-metals and their compounds:
A. Ductile
B. Conduct electricity
C. Brittle
D. Acidic oxides
E. Basic oxides
F. Discharged at anode
G. Discharged at cathode
H. Ionic chlorides
I. Covalent chlorides
J. Reaction with dilute sulphuric acid yields hydrogen
K. 1, 2 or 3 valence electrons
L. 5, 6, 7 valence electrons
(Write the five letters corresponding to the correct characteristics)