Every field of science has its favorite anniversary. For physics, it’s Newton’s Principia of 1687, the book that introduced the laws of motion and gravity. Biology celebrates Darwin’s On the Origin of ...
ICSE Class 9 Chemistry Sample Paper for Half Yearly Exam 2025: Students preparing for the ICSE Class 9 Chemistry half-yearly exams need more than just memorizing formulas and definitions. The ICSE ...
Nickel is a metal in group VIII of the periodic table with atomic number 29, an atomic weight of 58.71, and a density of 8.9. It has a melting point of 1453 C. The electronic configuration for the Ni ...
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