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MCQ on Periodic Classification of Elements for Students
Mendeleef arranged the elements in a table in the order of
1. Decreasing atomic weights
2. Increasing atomic weights
3. Decreasing atomic numbers
4. Increasing atomic numbers
Option 2 – Increasing atomic weights
Li, Be, B, C, N, O, F, Na, In this arrangement which elements have similar properties according to Newlands concept
1. Li, F
2. Be, Na
3. Li, Na
4. C, N
Option 3 – Li, Na
Newlands concept actaves failed when carried further to include
1. Lower elements
2. Higher elements
3. Gasious elements
4. None
Option 2 – Higher elements
Mn does not resemble
1. Cl
2. P
3. S
4. Cr
Option 2 – P
Who proposed periodic law which is the basis of modern system of classification of elements
1. Mendeleef
2. Lother Meyar
3. (1) and (2)
4. None
Option 3 – (1) and (2)
Who believed that “atomic property should be the basis for classification
1. Mendeleef
2. Mosley
3. De Chacourtois
4. Pettenkofer
Option 1 – Mendeleef
Who used atomic weights as the basis of classification
1. Mendeleef
2. Lother mayer
3. Mosley
4. (1) and (2)
Option 4 – (1) and (2)
While doing the classification Mendeleef gave more consideration to
1. The Chemical properties
2. The physical properties
3. The atomic sizes
4. The atomic orbitals
Option 1 – The Chemical properties
While doing the classification Lother meyer gave more consideration to
1. The chemical properties
2. The atomic numbers
3. The physical properties
4. The atomic Nucleus
Option 3 – The physical properties
According Mendeleef periodic law the properties of elements are the periodic functions of their ……
1. Atomic numbers
2. Atomic weights
3. Atomic sizes
4. Atomic volumes
Option 2 – Atomic weights
The first classification of elements is attempted by
1. Dobereiner
2. Mendeleff
3. Mosley
4. John A.R. Newlands
Option 1 – Dobereiner
Triads means
1. Small groups of Three elements
2. Small groups of Four elements
3. Small groups of Five elements
4. Small groups of Six elements
Option 1 – Small groups of Three elements
Dobereiner arranged elements as
1. groups
2. periods
3. triads
4. All the above
Option 3 – triads
In Doberiener traid the atomic weight of middle element is
1. The Sum of the atomic weights of first and third elements
2. The product of the atomic weights of First and Third elements
3. The ratio of the atomic weights of First and Third elements
4. The mean of the atomic weights of first and third elements
Option 4 – The mean of the atomic weights of first and third elements
Which of the following group of elements are triad
1. Na, Ne, k
2. Cl, Br, I
3. Li, Fe, Ni
4. C, N, O
Option 2 – Cl, Br, I
Group of Li, Na, K are called
1. Metals
3. Inactive metals
4. Triad
Option 4 – Triad
Which of the following is not a triad
1. S, Se, Te
2. Fe, Co, Ni
3. Li, Na, k
4. Na, Mg, Al
Option 4 – Na, Mg, Al
Concept of actaves was proposed by
1. Mosley
2. Mendeleef
3. Newlands
4. Pettenkofer
Option 3 – Newlands
According to Newlands concept of actaves if elements are arranged sequentially in the increasing order of their atomic weights
1. Every sixth element is having similar properties
2. Every eighth element is having similar properties
3. Every eighteenth element is having similar properties
4. Every fourth element is having similar properties
Option 2 – Every eighth element is having similar properties
Elements from atomic number 89 (Actinium) to 102 (Nobelium) are known as
1. Lanthanoids
2. Actinoids
3. Inertgases
4. Representative elements
Option 2 – Actinoids
Based on the electronic configuration, the elements are classified into….. classes
1. Two
2. Three
3. Four
4. Five
Option 3 – Four
All the inert gases are placed in
1. Zero group
2. First group
3. Second group
4. Third group
Option 1 – Zero group
Each period in the periodic table ends with an
1. Halogen
2. Chalkogen
3. Inert gas element
4. None of these
Option 3 – Inert gas element
Fourth and Fifth periods consist of …. elements each
1.2
2.8
3.18
4. 28
Option 3 – 18
Sixth period has
1. 18 elements
2.8 elements
3.32 elements
4. In complete
Option 3 – 32 elements
Seventh Period is …
1. Small period
2. Long period
3. Incomplete
4. None
Option 3 – Incomplete
Which of the following elements are known as Lanthanoides
1. Elements from atomic number 51 (Lanthanum) to 70 (Herbium)
2. Elements from atomic number 89 (Actinium) to 102 (Nobelium)
3. Elements from atomic number 11 (Sodium) to 18 (Argon)
4. Elements from atomic number 37 (Rubedium to 54 (Xenon)
Option 1 – Elements from atomic number 51 (Lanthanum) to 70 (Herbium)
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