Periodic Classification Of Elements - Paper I

10 Questions | By Kumarans | Updated: Mar 21, 2022 | Attempts: 4725

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Periodic Classification Of Elements - Paper I - Quiz

To identify the various trends in groups and periods To compare the traditional and modern methods of classification

Questions and Answers

1.

The electronic configuration of the atom of an element X is 2 , 8, 4 .In the modern periodic table , the element X is placed in :
- A.
  
  2 nd group
- B.
  
  4 th group
- C.
  
  14th group
- D.
  
  8th group
2.

Which of the following element would lose an electron easily ?
- A.
  
  Mg
- B.
  
  Na
- C.
  
  K
- D.
  
  Ca
3.

The elements A, B, C, D and E have atomic numbers 9, 11 , 17,12, and 13 respectively . The pair of elements which belongs to the same group of the periodic table is :
- A.
  
  A & B
- B.
  
  B & D
- C.
  
  A & C
- D.
  
  D & E
4.

Which one of the following does not increase while moving down the group of the periodic table ?
- A.
  
  Atomic radius
- B.
  
  Metallic character
- C.
  
  Valence electrons
- D.
  
  Shells in the atoms
5.

The Newlands Law of Octaves for the classification of elements was found to be applicable only up to the element :
- A.
  
  Potassium
- B.
  
  Calcium
- C.
  
  Cobalt
- D.
  
  Thorium
6.

An element X forms an oxide X₂O₃ . In which group of Modern periodic table is this element placed?
- A.
  
  Group 2
- B.
  
  Group 3
- C.
  
  Group 5
- D.
  
  Group 13
7.

The atomic numbers of the elements Na, Mg, K and Ca are 11, 12, 19, and 20 respectively. The element having the largest atomic radius is :
- A.
  
  Mg
- B.
  
  Na
- C.
  
  K
- D.
  
  Ca
8.

Where would you locate the element with electronic configuration 2, 8 in the modern periodic table ?
- A.
  
  Group 8
- B.
  
  Group 18
- C.
  
  Group 10
- D.
  
  Group 16
9.

Which of the following is the valence shell for the elements of second period of the modern periodic table ?
- A.
  
  M shell
- B.
  
  K shell
- C.
  
  L shell
- D.
  
  N shell
10.

Which of the following statements is not a correct statement about the trends when going from left to right across the periods of the periodic table ?
- A.
  
  The elements become less metallic in nature
- B.
  
  The number of valence electrons increases
- C.
  
  The atoms lose their electrons more easily
- D.
  
  The oxides become more acidic