91. Group of modern periodic table. . . . . . . in, an element with electronic configuration of 2, 8, 6 is placed.
92. If there are 12 protons in the nucleus of an element, then it belongs to group . . . . . . . .
93. Match List I with List II.
List-I
List-II
a. Most reactive alkali metal
1. F
b. Chemically most active non-metal
2. Cs
c. Metal with maximum density
3. Hg
d. Transition metals is in liquid state
4. Os
| List-I | List-II |
| a. Most reactive alkali metal | 1. F |
| b. Chemically most active non-metal | 2. Cs |
| c. Metal with maximum density | 3. Hg |
| d. Transition metals is in liquid state | 4. Os |
94. . . . . . . . . is not a transition metal.
95. Which of the following scientists does not contribute to the construction of modern periodic table?
96. The elements of the first group are called.
97. All the elements in a group in the Periodic Table have the same
98. In Mendeleev's periodic table, the vertical columns are called . . . . . . . . . and horizontal rows are called . . . . . . . .?
99. . . . . . . . . . it is the only nonmetal, paired with alkaline metals.
100. In the modern periodic table. There are inconsistencies regarding the position of . . . . . . . . as it can be placed in the first group of the first period and the 17th group.
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