Did you know that the concept of atomic theory was first explored over 2,500 years ago in ancient India? Long before modern science, an Indian sage named Acharya Kanad proposed the idea of indivisible ...

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 ...

atomic theory and atomic numbers, you'll also learn about isotopes and the properties of the main groups of elements. Bonding and properties of materials Only the noble gases exist as individual ...