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.

6 Oganesson (Og) is the most recently added superheavy element (SHE) in the periodic table. It completes the seventh period and belongs to group 18 of the noble gases ... with production rates as low ...

We present a general method for solving the modified Helmholtz equation without shape approximation for an arbitrary periodic charge distribution ... This paper is organized as follows: In Section 2.1 ...

As the Trump administration intensifies its crackdown on immigrants who are in the country illegally, officials and agencies took to social media to publicize the arrests. Photo: Christopher Dilts ...

Rangers will also join them in the top eight after the Glasgow giants overcame Union Saint-Gilloise. Lazio finished top, just ahead of Athletic Bilbao on goal difference. Eintracht Frankfurt, Lyon ...

It’s forecasted to grow at a compounded annual growth rate of 12% according to PR Newswire, primarily through Employee Resource Groups (ERGs ... $3.7 trillion on the table annually by not ...

Liverpool lost 3-2 away at PSV on Wednesday but remained top of the table after Barcelona could only draw with Atalanta. Arsenal ensured they finished third by beating Girona 2-1, while Atletico ...

DUBAI - Saudi Arabia's largest telecoms operator STC Group on Tuesday said it won a contract worth 32.64 billion riyals ($8.70 billion) from a government entity to build, operate and provide ...

WASHINGTON, Jan 28 (Reuters) - Transgender rights advocacy groups filed a lawsuit on Tuesday ... The military has about 1.3 million active-duty personnel, Department of Defense data show.