What is emission line spectra of elements?

The emission spectrum of a chemical element or chemical compound is the spectrum of frequencies of electromagnetic radiation emitted due to an electron making a transition from a high energy state to a lower energy state. Each element’s emission spectrum is unique.

Why are emission spectra different for different elements?

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.

Can elements be identified by their line spectra?

The emitted light can be observed as a series of colored lines with dark spaces in between; this series of colored lines is called a line or atomic spectra. Each element produces a unique set of spectral lines. Since no two elements emit the same spectral lines, elements can be identified by their line spectrum.

What is the use of line spectra?

A spectral line is like a fingerprint that can be used to identify the atoms, elements or molecules present in a star, galaxy or cloud of interstellar gas.

What is line spectra example?

atoms is known as a line spectrum, because the radiation (light) emitted consists of a series of sharp lines. The wavelengths of the lines are characteristic of the element and may form extremely complex patterns. The simplest spectra are those of atomic hydrogen and the alkali atoms (e.g., lithium, sodium,…

What is the difference between line spectrum and emission spectrum?

An emission line will appear in a spectrum if the source emits specific wavelengths of radiation. This emission occurs when an atom, element or molecule in an excited state returns to a configuration of lower energy. The spectrum of a material in an excited state shows emission lines at discrete frequencies.

Why do elements have unique emission spectra claim?

The spectra for each element are unique because each element contains differing numbers of electrons and thus different energy levels.

Which of the following can line spectra be used for?

Spectral lines are often used to identify atoms and molecules. These “fingerprints” can be compared to the previously collected ones of atoms and molecules, and are thus used to identify the atomic and molecular components of stars and planets, which would otherwise be impossible.

What is meant by a line spectrum explain how line spectrum can be used for the identification of elements?

atoms is known as a line spectrum, because the radiation (light) emitted consists of a series of sharp lines. The wavelengths of the lines are characteristic of the element and may form extremely complex patterns.