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REET Level 1 and 2 result declared

 REET Level 1 results declared REET L 1 results declared may 25  L 1 cut off marks REET main L2 results declared on 20 June  Cut off marks jari

Rpsc Food sefty officer Admit card download june 2023 update

 Food sefty officer Admit card download 2023


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How can learn periodic table

How can react atom and electron

Atom is cutable partical ,but atom subatomic particles election,proton and neutron परमाणु वियोज्य कण नहीं है, बल्कि परमाणु उपपरमाण्विक कण इलेक्ट्रॉन, प्रोटॉन और न्यूट्रॉन हैं An  atom  is the smallest constituent unit of ordinary  matter  that constitutes a  chemical element . Every  solid ,  liquid ,  gas , and  plasma  is composed of neutral or  ionized  atoms. Atoms are extremely small; typical sizes are around 100  picometers  ( 1 × 10 −10  m , a ten-millionth of a millimeter, or 1/254,000,000 of an inch). They are  so small  that accurately predicting their behavior using  classical physics  – as if they were  billiard balls , for example – is not possible. This is due to  quantum effects . Current atomic models now use  quant...

Rpsc first grade results out

 RPSC ne first grade ke sabhi vishayon ki answer ki aur cut off jari kar di gai hai. kafi vishayon ki result ghoshit Kiya Gaya aap sabhi ko jankari Di jaati hai Jin vidyarthiyon ka list mein Naam aaya hai 👉Http://www.rpsc.gov.in

Atomic number

Atomic number Atomic number  Definition :-  Atomic number is the number of protons in nucleus. eg. Helium About  explanation of the superscripts and subscripts seen in atomic number notation. Atomic number is the number of protons, and therefore also the total positive charge, in the atomic nucleus. The  Rutherford–Bohr model  of the  hydrogen atom  ( Z  = 1 ) or a hydrogen-like ion ( Z  > 1 ). In this model it is an essential feature that the photon energy (or frequency) of the electromagnetic radiation emitted (shown) when an electron jumps from one orbital to another be proportional to the mathematical square of atomic charge ( Z 2 ). Experimental...