There exist a huge number of exotic ... from group III on the periodic table (such as boron, indium, or gallium). These elements have only three electrons in their valence shell, so where N ...

Covalent Bonding: Concept of electronegativity, Fajan’s rule, dipole moment, Valence Shell ... Modern periodic law and present form of the periodic table, s, p. d and f block elements, periodic ...

A new proof has brought mathematicians one step closer to understanding the hidden order of those “atoms of arithmetic,” the prime numbers. The primes—numbers that are only divisible by ...

One of my favorite anecdotes about prime numbers concerns Alexander Grothendieck, who was among the most brilliant mathematicians of the 20th century. According to one account, he was once asked ...

arranged by their atomic number. One never knows when one will need the properties of Rutherfordium in a hurry. See if you can organize the first 25 elements of the periodic table in order in the ...

The Bihar School Examination Board (BSEB) is a prominent state education board responsible for conducting the class 10 and ...

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The cost of producing solar cells based on compounds of III-V element materials – named according to the groups of the periodic table that they belong to – has confined such devices to niche ...