Chemistry-(general)
NEET Chemistry (general) MCQ Question
Type: MCQ-conceptual-Hard-Class 11
Which of the following statements about the classification of elements and their properties is correct?
A
The new elements receive a temporary name with a three-letter symbol before a permanent name is assigned.
B
All elements in the same group have the same number of filled electron shells.
C
The sixth period contains only 18 elements due to the filling of 4f orbitals.
D
Oxides of elements on the left are acidic and those on the right are basic in nature.
Correct Answer
Option A
Detailed Explanation
According to the NCERT context, new elements first get a temporary name with a three-letter symbol before a permanent name is assigned. The other statements contain inaccuracies regarding group properties and the nature of oxides.
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