The mass of an electron is _ times smaller than that of a proton.
Correct answer: A. 1836
- A. 1836
- B. 1839
- C. 1837
- D. 1834
Explanation
The mass of an electron is indeed significantly smaller than the mass of a proton. The electron has a mass of approximately 9.10938356 × 10-31 kilograms (kg), while the proton has a mass of approximately 1.6726219 × 10-27 kg. The ratio of the mass of an electron to the mass of a proton is approximately 1/1836. The mass of an electron is 1836 times smaller as compared to a proton. (This line is mentioned in PTB as well as Federal.)
Last updated
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.
Exams that ask Chemistry questions like this
Chemistry is on 12 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
Related questions
168 O-2 has how many electrons in s-orbitals?
3s2, 3p4 valence shell electronic configuration corresponds to ?
6Y = 2s12P1x2P1y2P1z this is_configuration
A 1-kW radio frequency of 880 KHz. How many quantas per second does it emit?
A 1kW radio transmitter operates at a frequency of 880 kHz. How many quanta per second does it emit?