How does quantum theory explain the line spectra of atoms? Answer and Explanation: German physicist Max Planck transformed physics in 1900 with his discovery that energy is released in separate packets known as quanta and does not... Learn more about this topic: ...
NCERT ENGLISH-STRUCTURE OF THE ATOM -All Questions What are the limitations of J.J. Thomson’s model of the atom? 03:04 Describe Rutherford atom model. What are the drawbacks of this model? 03:26 What are the postulates of Bohr's model of an atom? 03:04 Summarise the rules for writi...
Elements are pure substances composed of only one kind of atom. They combine with other elements to form the compounds. The combination of elements is a results of the interaction of their valence electrons. The structures of the elements can be represented using Lewis dot structures which show ...
Structure of XeF(2) : 1) In XeF(2) central atom is 'Xe'. 2) 'Xe' undergoes sp^(3)d hybridisation in it's 1^(st) excited state 3) Shape of molecule is linear 4) Xe form two sigma - bonds with two fluorines (sp^(3)-2p(z) overlap) "Fe"-underse
What are the parts of an atom?Most atoms have three different subatomic particles inside them: protons, neutrons, and electrons. The protons and neutrons are packed together into the center of the atom (which is called the nucleus) and the electrons, which are very much smaller, whizz around...
The plum pudding model was the first model to assign a specific inner structure to an atom, and it was based on experimental evidence and mathematical formulas. However, it was soon replaced by a more accurate model of the atom after new discoveries were made. ...
Lewis Structure: Lewis's structure gives the arrangement of valence electrons of all the atoms in the molecule. In some molecules, one structure cannot describe the molecule completely, so more than one Lewis structure is possible for such molecules. ...
The reference answer is correct. It explains that each element has a unique atomic structure, leading to specific energy levels within the atom. When an electron transitions from an excited state to a lower energy level, it emits a photon of light with energy equal to the energy difference ...
What charge ion would the atom Calcium (Ca) make, and why? Explain the Rutherford nuclear-atom model. Explain how the number and arrangement of electrons in an atom or ion determines the number and kinds of chemical bonds that can be formed. ...
Briefly explain the early theories of atomic structure. Why does ionization energy increase when moving across a period? Why is oxygen on the periodic table O? Why isn't it O2? Explain the periodic and group trends seen in the lifetimes (inert/labile) for exchange of water molecules ...