Why do different elements show different spectra?

As the energy levels have different values, each of the possible electron transitions within an atom will produce a photon with a different energy. As a result each produces photons with different energy and so the line spectra for different elements will be different.

Do different elements show different 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.

Can spectroscopy identify elements?

Spectroscopy is the practice of examining spectra and comparing them to those of known elements. Using spectroscopy methods, scientists can identify pure substances or compounds and the elements in them.

Why are you able to exclude the presence of the other elements?

The physical and chemical properties of elements are directly related to the number of electrons a neutral atom has. That is, no two electrons can be in the same state. This statement is known as the Pauli exclusion principle, because it excludes electrons from being in the same state.

What are the differences in identifying elements and how can we identify them?

Explanation: The identity of an element is determined by the number of protons. One cannot alter the number of protons without altering the identity of the element. By adding a proton, the atomic number increases by one and the element identity changes.

Why do line spectra exist?

The presence of spectral lines is explained by quantum mechanics in terms of the energy levels of atoms, ions and molecules. This causes an electron to be promoted into a higher energy level, and the atom, element or molecule is said to be in an excited state.

Why do hot stars look bluer than cool stars?

Hot stars appear blue because most energy is emitted in the bluer parts of the spectrum. There is little emission in the blue parts of the spectrum for cool stars – they appear red.

Why do elements have more than one spectral line why aren’t there infinitely many lines?

Because there are many allowed energy states above the ones that are filled in an element’s ground state electron configuration there are multiple spectral lines in a given element.

Why does each element have its own pattern of spectral lines?

Absorption lines are seen when electrons absorb photons and move to higher energy levels. Since each atom has its own characteristic set of energy levels, each is associated with a unique pattern of spectral lines.

Are atoms made out of elements or are elements made out of atoms?

Atoms are always made out of elements. Atoms are sometimes made out of elements. They all have two letters in their atomic symbols. The have the same mass number.

What is Newland law of octave?

law of octaves, in chemistry, the generalization made by the English chemist J.A.R. Newlands in 1865 that, if the chemical elements are arranged according to increasing atomic weight, those with similar physical and chemical properties occur after each interval of seven elements.