In this periodic table of elements quiz, you have 10 minutes to name as many elements as you can, given only their symbol, atomic weight and the broad group they live in.

The Periodic Table of Black History features 90 prominent African Americans. From activists like Frederick Douglas and Rosa Parks to actors and actresses like Chadwick Boseman and Josephine Baker.

How the first Black woman to help discover an element ‘claimed a seat at the periodic table’ By Charli Leevongcharoen , CNN 6 minute read ...

Phelps contributed to the discovery that filled in square 117 on the periodic table, creating tennesine (Ts), the second-heaviest known element on Earth.

Clarice Phelps is the first Black woman to help discover a new periodic table element. "Taking a seat at the periodic table didn't happen overnight, it was actually a 20-year journey," she said.

The periodic table of elements is a landmark categorization developed in 1869 by the Russian chemist and inventor Dmitri Mendeleev. It arranges all natural and synthetic elements by their atomic ...