"An epic exploration of possibilities. What If is a Webby Award-winning science web series that takes you on a journey ...

The periodic table organizes chemical elements based on atomic weight, electron configurations, and chemical properties, reflecting the evolving nature of chemistry with updates like new elements and ...

1. Periodic Table as Arranged by Mendelejeff attention to the fact that “the eighth element, starting from a given one, is a kind of repetition of the first, like the eighth note of an octave in ...

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.

They are seeking good fortune in their hunt for an elusive entity: element 119. The periodic table looks complete, but it isn’t. The race is on to discover the table’s next row of elements ...

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 ...

How do we calculate mass and atomic numbers? VideoHow do we calculate mass and atomic numbers? This video is an interactive lesson in calculating an atom's mass and atomic number.

What are Endangered & Critical Elements? Of the 118 elements that make up everything—from the compounds in a chemist’s arsenal to consumer products on the shelf—44 will face supply limitations in the ...

Check the RRB Group D important questions for history, geography, general science, current affairs, defence and much more, ...