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What is the colour of barium?

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in Chemistry – Class 11 by (148k points)
What is the colour of barium?

(a) brick red

(b) crimson

(c) apple green

(d) blue

I got this question in a job interview.

My enquiry is from s-Block Elements topic in chapter s-Block Elements of Chemistry – Class 11

1 Answer

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The correct option is (c) apple green

Explanation: The colours of Barium, Strontium and Calcium are Apple Green, Crimson and brick red. These are the colours of their flames, the colours occur when an electron is excited and jumps into a higher energy level and then drop back. They emit the radiation in the form of visible light.

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