Can you name everything from Ac to Zr? Test your knowledge of the periodic table and see if you can top the leaderboard ...

The periodic table on the website of the International Union of Pure and Applied Chemistry avoids making a decision about whether La and Ac or Lu and Lr are group 3 elements.

Chemistry & Physics. Chemistry 403: Trends in the Periodic Table . Season 1 Episode 403 | 26m 9s. Students learn to describe the pattern in atomic number, atomic mass and atomic radius.

Chemistry & Physics. Chemistry 401: History of the Periodic Table . Season 1 Episode 401 | 29m 22s. The development of the periodic table as a result of the contributions two scientists.

And for chemistry, no cause for celebration surpasses the origin of the periodic table of the elements, created 150 years ago this March by the Russian chemist Dmitrii Ivanovich Mendeleev.

Surprisingly, my first inorganic chemistry textbook, published in 1961, did not include a periodic table at all—presumably it was not considered important. So I persuaded my parents to buy me one.

This gorgeously designed interactive periodic table is the easiest way to get the hang of chemistry and ace your mid-term exams.

VINELAND – Vineland High School chemistry teacher Vicki Yeager was in her element Tuesday celebrating the birthday of the periodic table with her students. “On this day 150 years ago, Dmitri ...

Experimental tests of relativistic chemistry will update the periodic table. ScienceDaily. Retrieved June 2, 2025 from www.sciencedaily.com / releases / 2021 / 02 / 210216133420.htm.

The iconic chart of elements has served chemistry well for 150 years. But it’s not the only option out there, and scientists are pushing its limits. By Siobhan Roberts When Sir Martyn Poliakoff ...