Name two other elements which belong to the carbon family.
Important Questions on Periodic Classification Of Elements
Name two other elements which belong to the sodium family.
Name two other elements which belong to the magnesium family.
Carbon and silicon are elements in the same group of the periodic table.
Give the electronic configuration of these atoms and state to which group and period these elements belong.
(a) Where in the periodic table are elements X and Y placed?
(b) Classify X and Y as metal (s), non-metal (s) or metalloid (s)
(c) What will be the nature of oxide of element Y? Identify the nature of bonding in the compound formed.
A part of the periodic table is shown below :
| Group | 1 | 2 | 13 | 14 | 15 | 16 | 17 | 18 |
(a) Which of these is/are noble gases?
(b) Which of these have 3 valence electrons?
(c) Which of these have strong tendency to lose one electron?
(d) Which of these have good tendency to form monovalent anions?
(e) Which of these is/are alkaline earth metals?
(f) Which of these is metalloid?
(a) Name the elements which have taken the place of these elements.
(b) Mention the group and the period of these elements in the modern periodic table.
(c) How many valence electrons are present in each one of them?
The following table shows the position of six elements A, B, C, D, E and F in the periodic table:
| Groups/Periods | 1 | 2 | 3 to 12 | 13 | 14 | 15 | 16 | 17 | 18 |
| 2 | A | B | C | ||||||
| 3 | D | E | F |
Using the above table to answer the following questions :
(a) Which element will form only covalent compounds?(b) Which element is a metal with valency 2?
(c) Which element is a non-metal with valency of 3?
(d) Out of D and E, which one has a bigger atomic radius and why?
(e) Write a common name for the family of elements C and F.
State Newlands law of octaves.
