14 Atomic structure Planks Quantum Theory Dual nature of electron for 11th NEET IIT JEE and Other Ex

7_Atomic Structure_Plancks Quantum Theory (Section-2B)

Developments Leading To The Bohr's Model Of Atom|Electromagnetic Wave Theory|Important Term Used In EM Theory|Electromagnetic Spectrum|Formulas|Different Units|Numerical|Spectrum|Limitation Of Electromagnetic Theory|Planck's Quantum Theory (Particle Nature Of Electromagnetic Radiations)|OMR

Neils Bohr has a major contribution towords the structure of atom. He has given Bohr's Bury rules for the distribution of electrons in the various shells in an atom. Apart from that, he has also introduced the concept of ground state and excited states for an electron. But Bohr theory does suffer from certain defects. The present picture of the atom is mainly due to the researches carried by Heisenberg. (i) State the Heisenberg's uncertainty principle. (ii) Give its mathemetical form. (iii) Why does the principle have no utility in daily life ?

The first use of quantum theory to explain the structure of atom was made by

27_Atomic Structure_Concept Of Quantum Numbersl(Electronic Configuration) (Section-7)

26_Atomic Structure_Concept Of Quantum Numbersl(Rules For Filling Electrons In Sub Shells) (Section-7)

Structure Of Atom|Dalton's Atomic Theory|Failure Of Dalton's Atomic Theory|Discovery Of Electron|Characterstics Of Cathode Rays|Some Of The Important Properties Of The Cathode Rays|Result|Discovery Of Proton|Discovery Of Neutron|OMR

Nature Of Light|Electromagnetic Wave Theory|Some Important Characteristics Of A Wave|Relation Between Wavelength And Frequency|Electromagnetic Radiations|Electromagnetic Spectrum|Questions|Plank's Quantum Theory|Wavelength Intensity Relationship|Photoelectric Effect|The Experimental Findings Are Summarized As Below|Threshold Frequency|Important Terms Related To Photoelectric Effect|Mathmatical Interpretation Of Photoelectric Effect|Graphs Related To Photelectric Effect|Some Previous Year Questions For Practice|OMR

Write the electronic configuration of two elements X and Y whose atomic numbers are 20 and 17 respectively. Write the molecular formula of the compound formed when element X reacts with element Y. Draw electron-dot structure of the product and also state the nature of the bond formed between both the elements.