Adaptive Practice
Periodic Table
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Easy
Who is known as the 'Father of the Periodic Table'?
Easy
In the modern periodic table, elements are arranged based on increasing:
Easy
Which of the following elements is a halogen?
Easy
Elements in the same group of the periodic table have the same:
Medium
Which element is located in period 3 and group 2 of the periodic table?
Medium
What is the valency of an element with atomic number 17?
Medium
Which of the following statements is TRUE about transition elements?
Hard
Why does atomic size decrease from left to right across a period?
Medium
Which of the following elements is a metalloid?
Medium
The element with electronic configuration 2, 8, 1 belongs to which group?