Positive ray particles which is the largest e by m ratio will be given by the gas
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Anode rays differ from cathode rays in several aspects and their specific charge - charge/mass or e/m ratio is an important feature.
The reason lies in how anode rays are produced. Anode rays are produced when a gas at low pressure is subjected to a high voltage (say, 10 KV). Under these conditions, the atoms of the gas get ionized, i.e. they lose some electrons and thus become cations (positive ions). It is a stream of these positive ions that are known as 'anode rays'.
However, the atomic masses of different gases are different, and hence the mass of anode ray particles varies when you use different gases in the discharge tube and consequently, the charge/mass ratio also varies.
On the other hand, the cathode ray is an electron beam emerging from the cathode striking the anode plate. This is negatively charged, and particles are electrons whose e/m ratio is constant for all gases, and is known as the Universal Constant. Their charge and mass is constant no matter what gas you use in the discharge tube.
The reason lies in how anode rays are produced. Anode rays are produced when a gas at low pressure is subjected to a high voltage (say, 10 KV). Under these conditions, the atoms of the gas get ionized, i.e. they lose some electrons and thus become cations (positive ions). It is a stream of these positive ions that are known as 'anode rays'.
However, the atomic masses of different gases are different, and hence the mass of anode ray particles varies when you use different gases in the discharge tube and consequently, the charge/mass ratio also varies.
On the other hand, the cathode ray is an electron beam emerging from the cathode striking the anode plate. This is negatively charged, and particles are electrons whose e/m ratio is constant for all gases, and is known as the Universal Constant. Their charge and mass is constant no matter what gas you use in the discharge tube.
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Answer:
Hydrogen gas.
Explanation:
It only has one proton and no contains no neutron in its nucleus so:
e/m=1e/1m
The charge of proton is upon smallest mass I.e proton only.as other gases contain neutron in its nucleus e/m decreases for them.
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