Moderate

An element or its compound is first _ to get its _ spectrum by spectrometer.

Correct answer: C. Volatilized, line

  • A. Freezed, continuous
  • B. Freezed, line
  • C. Volatilized, line
  • D. Volatilized, continuous

Explanation

The four stages of mass spectrometry are - ionization, acceleration, deflection, and detection. The sample is vaporized before being passed into an ionization chamber where it is bombarded by a stream of electrons emitted by an electrically heated metal coil. The spectrum cannot be continuous spectrum because they are formed by thermal emission.

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