It's been almost two years since I've done a roundup of periodic tables (and six years since I posted the first one). Oh, you know the periodic table of elements; you may have even studied it. But ...

The elements were placed in the periodic table’s seventh row, which is above the row of lanthanides and the row of actinides. In the 1980s and 1990s, Roberto noted, scientists at the GSI Helmholtz ...

Most periodic tables tell you the atomic number of each element. This one, created by Jamie Gallagher — a scientist and public engagement officer at the University of Glasgow — provides a bit ...

A grade 5 Covenant College student has set the Guinness World Record for fastest time to recite periodic table from memory.

Since Mendeleev's time, scientists have discovered new elements, expanding the periodic table. The most recent additions include nihonium, moscovium, tennessine, and oganesson, which were officially ...

You would look at the periodic table to find an atom that you could add 5 to its number of protons that would give you a sum close to the atomic mass given for that element. The answer is beryllium ...

History of Periodic Table of Elements. Johann Dobereiner, a German chemist, was the first to consider trends among element properties in the early 1800s.

Now in the Periodic Table the valency for oxygen, an electro-negative element, increases regularly as we pass from Group 0 to Group VIII, while that for hydrogen, an electro-positive element ...

NCERT had faced criticism for dropping periodic table from the Class 10 and 12 boards. The new NCF, which comes after a gap of 18 years, in a series of four courses is likely to start with ...

India News: NEW DELHI : Darwin’s theory of evolution and the periodic table will continue to be part of the Class 9 and 10 syllabus as will chapters on the Mughal.