Asan Mcqs - Solved Original Papers, General Knowledge, Pakistan Current Affairs MCQs for JOBS 21Oct18Batch1 Excise and taxation Inspector General Knowledge Mcqs PPSC What are columns of the periodic table called?

What are columns of the periodic table called?

A. Periods
B. Verticals
C. Perpendiculars
D. Groups

Submitted by: Sara Ahmed

21Oct18Batch1 Excise and taxation Inspector General Knowledge Mcqs PPSC

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