Table of Contents
What is the main difference in the spectra resulting from atomic emission and molecular emission?
These two topics are one of the most interesting concepts in Physics….Emission Spectra VS Absorption Spectra.
Emission Spectra | Absorption Spectra |
---|---|
Produced when atoms release energy | Produced when atoms absorb energy |
Comprise coloured lines in the spectrum | Comprise dark lines or gaps in the spectrum |
What is the difference between atomic and molecular transitions?
Atomic transitions involve changes in the electron orbitals. These changes can be the emission of X-Rays from chances involving the innermost electron shells of the atom. Changes in outer electron shells can be in the visible light region of the spectrum. Molecular transitions are in the infrared or microwave region.
What do you understand by atomic and molecular spectra?
Atomic spectra are the transition of electrons between election energy levels in isolated atoms. Molecular spectra have additional modes, rotational and vibrational that are function of the molecular structure.
What is molecular spectrum?
Definition of molecular spectrum : a spectrum of radiation due to electron transitions and other quantum energy changes within molecules and consisting of series of characteristic spectrum bands which are found upon high dispersion to be made up of very fine lines.
Why do atoms have different emission spectra?
Different elements have different spectra because they have different numbers of protons, and different numbers and arrangements of electrons. The differences in spectra reflect the differences in the amount of energy that the atoms absorb or give off when their electrons move between energy levels.
Why is molecular spectroscopy more complicated than atomic spectroscopy?
Molecular spectra result from either the absorption or the emission of electromagnetic radiation as molecules undergo changes from one quantized energy state to another. The mechanisms involved are similar to those observed for atoms but are more complicated.
What is the kind of atomic spectrum?
There are three types of atomic spectra and they are emission spectra, absorption spectra, and continuous spectra.
Why molecular spectra is more complicated than atomic spectra?
What are different types of molecular spectra?
The three types of molecular spectra are:
- Pure rotational spectra.
- Vibrational rotational spectra.
- Electronic band spectra.
What is difference between spectra and spectrum?
A spectrum (plural spectra or spectrums) is a condition that is not limited to a specific set of values but can vary, without gaps, across a continuum. Spectrum has since been applied by analogy to topics outside optics.
What is the difference between an emission line spectrum an absorption spectrum and a continuous spectrum?
The major difference between the emission spectrum and the absorption spectrum is that the absorption spectrum is continuous spectra whereas the emission spectrum is the discontinuous or line spectra. The emission spectra are obtained due to radiations emitted by excited atoms.
What is the difference between atomic and molecular spectroscopy?
The key difference between atomic spectroscopy and molecular spectroscopy is that the atomic spectroscopy refers to the study of the electromagnetic radiation absorbed and emitted by atoms whereas the molecular spectroscopy refers to the study of the electromagnetic radiation absorbed and emitted by molecules. 1.
What is the difference between molecular spectra and electronic spectra?
Molecular spectra involve transitions in molecules with two or more atoms (either the same or different). Since the valence electrons are now in different orbitals from the atomic orbitals and the orbital structure has changed the electronic transitions are different.
What are atomic spectra?
Atomic spectra are the transitions of electrons between electronic energy levels in isolated atoms. They are affected by interactions of the transitioning electrons with the nuclei spins and with the other electrons in the atom.
Why do atoms and molecules give rise to spectra?
Electrons in atoms can be excited to higher energy states and electrons in molecules can also be excited to high energy states. As a result, both atoms and molecules give rise to spectra. Atomic spectra are the transitions of electrons between electronic energy levels in isolated atoms.