February 7 is National Periodic Table Day, when we celebrate the efforts of scientists over the centuries to figure out how different elements ...

The periodic table organizes chemical elements based on atomic weight, electron configurations, and chemical properties, ...

On 17 February 1869, Russian chemist Dmitri Mendeleev jotted down the symbols for the chemical elements, putting them in order according to their atomic weights and inventing the periodic table.

I went to my rest a sober man, content with the stable progression of elements I found to be more reliable than any prayer. Sleep came easily. I went deep, then deeper, until in a single instant I ...

WELLINGTON, New Zealand — Among other false and misleading claims in U.S. President Donald Trump’s inauguration addresses on Tuesday, his declaration that Americans “split the atom ...

Donald Trump’s inaugural address on Monday was peppered with many falsehoods — but the new president’s claim that the United States split the atom is one that caused international irritation ...

A small town mayor in New Zealand has picked a nuclear fight with Donald Trump, after the freshly sworn-in U.S. president heaped praise on American scientists for splitting the atom. The mayor of ...

Languages: English. New Zealanders are expressing frustration after U.S. President Donald Trump credited Americans with splitting the atom in his second inaugural address——an achievement ...