anonymous user

Anonymous

What is the atomic number 21?

Topics: ScienceChemistryPeriodic Table

Answer

The atomic # 21 symbolizes a white trivalent metallic element; sometimes classified in the rare earth group.

Do you know the answer?

Login or Sign Up to answer this question.

data-config-site-section="chacha">
What is the atomic number 21?

Related Periodic Table Questions

See All Questions