OnlineCBT
Chemistry · Classification of Elements and Periodicity in Properties
हिन्दीGiven below are two statements: Statement I: Lanthanoids and actinoids are placed in separate panels at the bottom of the periodic table. Statement II: The horizontal rows in the periodic table are called groups and vertical columns are called periods. In the light of the above statements, choose the most appropriate answer from the options given below:
Correct answer · Option 3
Statement I is correct but Statement II is incorrect.
Explanation
Statement I is correct. Statement II is incorrect because horizontal rows are called periods and vertical columns are called groups.
