The colors of rubies and emeralds are so striking that they define shades of red and green—ruby red and emerald green. But ...

Philip Ball looks at how a little-known paper by Niels Bohr demonstrates the turmoil in physics on the brink of quantum ...

In this book, therefore, he has attempted to provide a bridge by means of which the student of metallurgy may be led to an understanding of the general ideas on which the modern theory is based.

1 The electronic structure of sodium can also be shown in a diagram. Each dot represents an electron. Since the atomic number of oxygen is 8, it will have 8 protons in the nucleus. An atom of ...

Photo: Niels Bohr's research notes for his new atomic theory Rutherford's find came from a very strange experience. Everyone at that time imagined the atom as a "plum pudding." That is ...

One feature of compounds made with transition metals is their intense colour. There are many examples in nature, including ...

Quantum Theory and the Bohr Model’s Limitations ... It provided a framework for understanding atomic structure, which was essential for the later development of quantum mechanics.

JEE Main session 1 is planned to be conducted on 22, 23, 24, 28, 29, and 30 January. The National Testing Agency (NTA) has already released the 2025 JEE Main Admit Card for the initial three days.