Post category:Chemistry Mcqs Post comments:0 Comments What are Columns in Periodic table called? A. Period B. Group C. Verticals D. Perpendiculars Read more articles Previous PostWhat are rows in Periodic table called? Next PostMost of the ozone in the atmosphere is concentrated in the You Might Also Like The oxide of calcium CaO is: August 26, 2020 The most densest substance on the Earth is __________. June 19, 2022 Is bronze an alloy, what is it made up of? August 22, 2020 The Sun’s mass is mainly consist of ____________? September 7, 2021 The soul of chemistry is dealing with___________? May 25, 2021 Almost all metals are solids except ___________? April 25, 2022 Leave a Reply Cancel replyCommentEnter your name or username to comment Enter your email address to comment Enter your website URL (optional) Save my name, email, and website in this browser for the next time I comment. Δ