Classification of Elements and Periodicity in Properties / तत्त्वों का वर्गीकरण एवं गुणों में आवर्ति
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Chemistry
Classification of Elements and Periodicity in Properties / तत्त्वों का वर्गीकरण एवं गुणों में आवर्ति
Question Bank
Classification of Elements and Periodicity in Properties
question_answer
The elements with atomic numbers 2, 10, 18, 36, 54 and 86 are all
A) halogen
B) noble gases
C) noble metals
D) light metals
Correct Answer:
B
Solution :
All these are noble gases with completely filled outermost shell.