Question

5. Who discovered positively charged rays?
6. Does the mass and charge on positive rays remain same with the change in nature of gas in a discharge tube?
7. Name a gas which produces positive rays which only consists of protons.
8. What is a proton? State the charge on a proton in coulombs and mass in grams.
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Answer 1

$\large\boxed{\fcolorbox{black}{hotpink}{QUESTION\:1}}$

Who discovered positively charged rays?

$\large\boxed{\fcolorbox{black}{lavender}{ANSWER}}$

In 1886 Eugene Goldstein (1850–1930) discovered evidence for the existence of this positively charged particle. Using a cathode ray tube with holes in the cathode, he noticed that there were rays traveling in the opposite direction from the cathode rays.

$\large\boxed{\fcolorbox{black}{hotpink}{QUESTION\:2}}$

Does the mass and charge on positive rays remain same with the change in nature of gas in a discharge tube?

$\large\boxed{\fcolorbox{black}{lavender}{ANSWER}}$

The nature of the anode rays depends upon the gas taken in the discharge tube. Different gases give different types of positive rays, which contain particles having different masses and different charges. Therefore the (e/m) ratio is not constant for positive ray particles obtained from different gases.

$\large\boxed{\fcolorbox{black}{hotpink}{QUESTION\:3}}$

Name a gas which produces positive rays which only consists of protons.

$\large\boxed{\fcolorbox{black}{lavender}{ANSWER}}$

Hydrogen gas is the gas which produces positive rays which only consists of protons.

$\large\boxed{\fcolorbox{black}{hotpink}{QUESTION\:4}}$

What is a proton? State the charge on a proton in coulombs and mass in grams.

$\large\boxed{\fcolorbox{black}{lavender}{ANSWER}}$

A proton is a subatomic particle with a positive electric charge. Protons are found in the nucleus of every atom. In fact, the number of protons in each atom is its atomic number.

Protons have a charge of +1 elementary charge. An elementary charge is denoted by the letter 'e' and was originated in 1874 by George Stoney. While a proton has a charge of +1, or 1e, an electron has a charge of -1, or -e, and a neutron has no charge, or 0e.

1 elementary charge is equal to:

$1.602 x 10^-19 coulombs$

$4.80320425*10^-10 statcoulombs$

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