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प्रश्न
All the gases from cathode rays and anode rays when electricity is passed through them :What does the formation of cathode rays tell us about the atoms?
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उत्तर
A cathode ray is a stream of high velocity electrons that are produced in a vacuum tube between a negatively charged cathode and a positively charged anode. Formation of cathode rays tells about the presence of electrons in all the atoms.
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संबंधित प्रश्न
What is an electron? State its relative mass and charge.
The atom of an element X has 7 electrons in its M shell.
Is it a metal or a non-metal?
Name the sub-atomic particle whose charge is -1.
Explain the rule according to which electrons are filled in various energy levels.
What is the term defined below?
A bond formed by a shared pair of electrons, each bonding atom contributing one electron to the pair.
An element X has 2 electrons in its M shell, it forms a bond with an element Y which has 7 electrons in its third orbit.
- Write the formula of the compound formed.
- Which nearest inert gas electronic configuration will element X and Y acquire.
- Show by orbital diagram the formation of the compound between X and Y.
Explain in brief the experimental proof which led to the discovery of –
Electrons
Differentiate between the following term:
Electron and proton
On the basis of Thomson’s model of an atom, explain how the atom is neutral as a whole.
When an atom gains an electron it has more electrons and thus it carries a positive charge.
