Class 11ChemistryStructure of AtomDiscovery and Properties of anode, cathode rays neutron and Nuclear structure
MediumExplain the discovery of protons.
(N/A) Electrical discharge carried out in a modified cathode ray tube led to the discovery of particles carrying a positive charge,also known as canal rays.
Characteristics of canal rays:
$(i)$ The positively charged particles depend upon the nature of the gas present in the cathode ray tube. These are simply the positively charged gaseous ions.
$(ii)$ The charge-to-mass ratio of the particles is found to depend on the gas from which they originate.
$(iii)$ Some of the positively charged particles carry a multiple of the fundamental unit of electrical charge.
$(iv)$ The behavior of these particles in a magnetic or electrical field is opposite to that observed for electrons or cathode rays.
The smallest and lightest positive ion was obtained from hydrogen and was called a proton $(H^{+})$.
Characteristics of canal rays:
$(i)$ The positively charged particles depend upon the nature of the gas present in the cathode ray tube. These are simply the positively charged gaseous ions.
$(ii)$ The charge-to-mass ratio of the particles is found to depend on the gas from which they originate.
$(iii)$ Some of the positively charged particles carry a multiple of the fundamental unit of electrical charge.
$(iv)$ The behavior of these particles in a magnetic or electrical field is opposite to that observed for electrons or cathode rays.
The smallest and lightest positive ion was obtained from hydrogen and was called a proton $(H^{+})$.
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Fill in the blanks:
$(i)$ When amber or ebonite is rubbed with silk or fur,it produces $......$.
$(ii)$ In a discharge tube,the stream of particles flows from cathode to anode. This is called $......$.
$(iii)$ In a cathode ray tube,a coating of $......$ is applied as a fluorescent material.
$(iv)$ $A$ television picture tube is a type of $......$ tube.
$(i)$ When amber or ebonite is rubbed with silk or fur,it produces $......$.
$(ii)$ In a discharge tube,the stream of particles flows from cathode to anode. This is called $......$.
$(iii)$ In a cathode ray tube,a coating of $......$ is applied as a fluorescent material.
$(iv)$ $A$ television picture tube is a type of $......$ tube.
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View SolutionMatch the following:
$A$. Chadwick $1$. Cathode rays $B$. Rutherford $2$. $X$-ray spectra $C$. Moseley $3$. Discovery of neutrons $D$. $J$. $J$. Thomson $4$. Nuclear atom model
| $A$. Chadwick | $1$. Cathode rays |
| $B$. Rutherford | $2$. $X$-ray spectra |
| $C$. Moseley | $3$. Discovery of neutrons |
| $D$. $J$. $J$. Thomson | $4$. Nuclear atom model |
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