1.
Which among the following elements has the largest atomic radii?
2.
Which of the following set of elements is written in order of their increasing metallic character?
3.
Three elements B, Si and Ge are
4.
Which one of the following elements exhibit maximum number of valence electrons?
5.
The elements with atomic number 14 are hard and forms acidic oxide and a covalent halide. To which of the following does the element belong?
6.
Which of the following is the outermost shell for elements of period 2?
7.
Which of the following elements will form an acidic oxide?
8.
Which of the following is not a correct statement about the trends when going from left to right across the period of periodic table?
9.
Which of the following statement (s) about the Modern Periodic Table are incorrect? (i) The elements in the modern periodic table are arranged on the basis of their decreasing atomic number. (ii) The elements in the modern periodic table are arranged on the basis of their increasing atomic masses. (iii) Isotopes are placed in adjoining group (s) in the periodic table. (iv) The elements in the modern periodic table are arranged on the basis of their increasing atomic number.
10.
Which of the following statements about the modern periodic table is correct?
11.
Where would you locate the element with electronic configuration 02, 8 in the Modern Periodic Table?
12.
Which of the following elements does not lose an electron easily?
13.
According to Mendeleev's Periodic Law, the elements were arranged in the periodic table in the order of
14.
Up to which element, the Law of Octaves was found to be applicable
15.
In Mendeleev's Periodic Table, gaps were left for the elements to be discovered later. Which of the following elements found a place in the periodic table later?
16.
Which one of the following does not increase while moving down the group of periodic table?
17.
An element which is an essential constituent of all organic compounds belongs to
18.
On moving left to right in the periodic table, the size of the atom
19.
The element X forms a chloride with formula XC12 which is a solid with high melting point. X would most likely be in the same group of periodic table as
20.
Which of the following are the characteristics of isotopes of an element? (i) Isotopes of an element have same atomic mass (ii) Isotopes of an element have same atomic number (iii) Isotopes of an element show same physical properties (iv) Isotopes of an element show same chemical properties
