Periodic Classification of Elements

What is the valency of an element that has atomic number 12?
1. 1
2. 2
3. 3
4. 4
Which of the following metals is most reactive?
1. Li
2. Na
3. K
4. Rb
Which of the following groups of periodic table does an element belong, if it has an atomic number of 10?
1. 1
2. 2
3. 18
4. 17
Which of the following two elements have similar chemical properties?
1. Element with atomic number 3 and element with atomic number 11
2. Element with atomic number 3 and element with atomic number 9
3. Element with atomic number 11 and element with atomic number 9
4. Both [b] and [c]
Which of the following is true about an element that has an atomic numbers of 15?
1. Element belongs to group 5.
2. Element has a valency of 3.
3. Element is a non-metal.
4. Both [b] and [c]
Which of the following is true about an element if it has an atomic number of 10?
1. It is a metal
2. It is a non-metal
3. It is a noble gas
4. All the above
Which of the following is true about an element that belongs to the group 1 of the periodic table?
1. It is a metal.
2. It is a non-metal
3. It is a noble gas.
4. Both [b] and [c]
What kind of bond will be formed between elements, if one of them belongs to group 16 and another belongs to group 14?
1. Ionic bond
2. Covalent bond
3. Coordinate bond
4. No bonding will take place
Which one of the following is not a configuration of a noble gas?
1. 2, 8, 18, 8
2. 2, 8, 18, 2
3. 2, 8
4. 2, 8, 18,18, 8
On moving from top to bottom in a group, which of the following characters increases?
(i) Atomic size
(ii) Metallic character
(iii) Acidic nature of oxides
(iv) Valence electrons
1. (i) and (ii)
2. (ii) and (iii)
3. (i) and (iii)
4. (iii) and (iv)
Newland's law of octave was applicable to the classification of elements up to:
1. As
2. Ca
3. Cr
4. Zn
The correct electronic configuration of element with atomic number 28 is:
1. 2, 8, 18
2. 2, 8, 16,2
3. 2, 8, 8 ,12
4. 2, 18, 8
Which one element among the following will have maximum metallic character? Na. Mg, Al, Si
1. Si
2. Mg
3. Al
4. Na
Which one of the following statements is correct for the nature of oxides when we move in periods from left to right in the modem periodic table?
1. The basic nature of oxides decreases and the acidic nature of oxides increases.
2. The acidic nature of oxides decreases and the basic nature of oxides increases.
3. No change in the nature of oxides of elements.
4. Either [b] or [c]
Modern periodic table was prepared by ____.
1. Mendeleev
2. Bohr
3. Newland
4. Dobereiner
Which of the following is the present basis for the classification of element
1. Atomic mass of elements
2. Atomic number of elements
3. Physical state of elements
4. Valency of elements
Which of the following is correct for Mendeleev's classification of element;
1. Mendeleev's periodic table was based on atomic number.
2. There were eight periods and seven groups in the periodic table.
3. Mendeleev's periodic table could accommodate noble gases when they we discovered.
4. All the above
In the modern periodic table, sulphur (atomic number 16) is surrounded by elements with atomic number 8, 15 and 17? Which of these have physical and chemical properties resembling sulphur?
1. Element with atomic no. 8
2. Element with atomic number 15
3. Element atomic number 17
4. All the above
Which one of the following is correct for an element with atomic number 24?
1. It is a non-mental.
2. It is a metal.
3. It forms ionic bond with oxygen.
4. Both [b] and [c]
"Law of octaves" was given by:
1. Mendeleev
2. Newland
3. Dobereiner
4. Moseley
Which of the following is true, if element of group 2 of periodic table reacts with the element of group 17?
1. The compound formed conducts electricity
2. Ionic bonding takes place to form the compound
3. No bonding will take place
4. Both [a] and [b]
Electron affinity can be defined as:
1. The energy given out when an extra electron is added to a neutral isolate atom.
2. The energy required to knock out an electron from an isolated gaseous atom or ion.
3. The number of electrons in the outermost shell.
4. The number of valence electrons in the outer most shell of the element.
The period number of an element in the periodic table gives the:
1. Number of valence electrons in the outermost shell
2. Number of shells in an atom of the element.
3. Atomic number of the element
4. All the above
Moving down the group from Li to Cesium the electropositive character of element:
1. Decreases
2. Increases
3. Remains same
4. Either [a] or [b]
Which one of the following is the most non-metallic element?
1. Ar
2. Cl
3. P
4. S

Periodic Classification of Elements

Quiz