The noble gases (Helium, Neon, Argon etc.) were not discovered until much later, which explains why there was a periodicity of 7 and not 8 in Newlands table. Newlands did not leave any gaps for ...

The periodic table of chemical elements, often called the periodic table, organizes all discovered chemical elements in rows (called periods) and columns (called groups) according to increasing atomic ...

If this is indeed so, then there may well be an optimal table to reflect periodicity as it really exists in nature, even though we may not yet have discovered it. Perhaps the much-debated position ...

Across a period from left to right, the covalent radius decreases. As you move from left to right across the periodic table, atoms have more electrons in their outer energy level and more protons ...

A fundamental characteristic of time series data is how frequently the observations are spaced in time. How often the observations of a time series occur is called the sampling frequency or the ...

Key Points Random sampling is a random means of gathering data points from all groups. It eliminates bias within your data ...

As the 2025 examination is approaching fast, it is time that students devote their time effectively to preparation and then ...

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IIT Kanpur, in partnership with the Ministry of Education, has launched SATHEE, a free 45-day crash course for students ...