Classification of Elements and Periodicity in Properties / तत्त्वों का वर्गीकरण एवं गुणों में आवर्ति
UPSC
Chemistry
Classification of Elements and Periodicity in Properties / तत्त्वों का वर्गीकरण एवं गुणों में आवर्ति
Question Bank
Elements Classification and Chemical Bonding
question_answer
On moving horizontally across a period, the number of electrons in the outermost shell increases from ...... to.......