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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
State whether the following statement is true or false :
The cathode rays obtained from all the gases consist of negatively charged particles called electrons.
The ion of an element has 3 positive charges. The mass number of atom of this element is 27 and the number of neutrons is 14. What is the number of electrons in the ion?
If an atom contains one electron and one proton, will it carry as a whole is neutral
Name the sub-atomic particle whose charge is -1.
If electrons are getting added to en element Y; then
Is Y getting oxidized or reduced?
What is the term defined below?
A bond formed by a shared pair of electrons, each bonding atom contributing one electron to the pair.
In the formation of (i) oxygen molecule (ii) carbon tetrachloride molecule, state the following:
- Electronic configuration of nearest inert gas attained.
- How many electrons are shared/transferred in bond formation
- Which type of bonds these compounds form?
- Draw their orbital diagrams.
Give a simple diagram to show the arrangement of the electrons in an atom of sulphur.
On the basis of Thomson’s model of an atom, explain how the atom is neutral as a whole.
Helium has two electrons in the outermost orbit and so it is chemically inert.
