Positive rays are produced when _ strike the molecules of a gas in a discharge tube.
Correct answer: D. High-speed electrons
- A. Low-speed neutrons
- B. High-speed neutrons
- C. Low-speed electrons
- D. High-speed electrons
Explanation
In the Discharge Tube Experiment, high-speed electrons transition from the metal of the cathode and go towards the anode. It may collide with gas molecules present in the tube. Out of many possibilities, one being the gas molecule may lose an electron (pushed out) upon collision, forming a stream of positively charged particles, also known as anode rays. Hence, the particles responsible for the production of positive rays are "high-speed electrons".
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Atomic Structure
Atomic structure covers the discovery of the proton, Planck's quantum theory, hydrogen emission spectra and the evidence for quantized energy levels. You will use quantum numbers to describe orbitals, distinguish s, p, d and f orbital shapes, and write electronic configurations, including the correct order of electron filling.
Practise Atomic Structure
922 free Atomic Structure MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Chemistry questions like this
Chemistry is on 14 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Atomic Structure questions
The lobes of d-orbitals lie between the axis:
The greater the value of the principal quantum number 'n', the distance of an electron from the nucleus will be _.
The radius of Bohr's atom depends on the following?
What is the range of Azimuthal Quantum number (I)?
Wave packet or quantum is often called "photon" in the case of _.
Principal quantum numbers specify the _ of electron.