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.

The modern periodic table, arranged in rows and columns, was first introduced by Dmitri Mendeleev in 1869. At the time, it included the known elements and their properties, but Mendeleev predicted ...

We present a general method for solving the modified Helmholtz equation without shape approximation for an arbitrary periodic charge distribution, whose solution is known as the Yukawa potential or ...

If you get into working on bigger puzzles, they can eat up your dining room table, coffee table or desk space for long stretches of time. This is why many jigsaw fans have a dedicated puzzle ...

We present an efficient and linear-scaling implementation of analytical gradients of Hartree-Fock exchange (HFX) energy for periodic HSE06 calculations with fitted NAOs in the HONPAS package. In our ...

We are in the home straight of the new league phase of the Champions League - with the five British teams looking to accomplish different feats in the new format. Liverpool have won each of their ...

The UP Board exams for Classes 10 and 12 are scheduled to begin on 24th February 2025 and will continue until 12th March 2025. Earlier, it was speculated that the exams might be delayed due to the ...

You can save a Notepad file as PDF by using Microsoft Print to PDF feature. It is a built-in feature in Windows that lets users convert their documents from one format into PDF. This will save ...

When things are not working for you and you cannot save the file as PDF when using Publisher in Windows 11/10, try toggling between your default printer and another print device. The method works ...