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Why do different elements emit different colors of light quizlet?

An electron in an atom can move from one energy level to another when the atom gains or loses energy. Because no two elements have the same set of energy levels, different elements emit different colors of light.

What makes matter emit different colors?

In molecules, where two or more atoms share some of their electrons, the molecules can absorb light of one color and emit another color. This works whether the atoms are the same (eg two Nitrogen atoms) or different elements.

Why do different elements emit different flame Colours when heated by the same non luminous flame?

An atom of molecule in excited state can emit light to lower its energy in order to get stability and come back to ground state. The light emitted by different kinds of atoms are different because the excited states electrons will go are different. So different elements produce different flame colours.

Why do different atoms emit different wavelengths of light?

An atom changes from a ground state to an excited state by taking on energy from its surroundings in a process called absorption. The electron absorbs the energy and jumps to a higher energy level. Because the atom can only absorb specific amounts of energy, only certain wavelengths of light will be absorbed.

What determines the color of the light emitted?

A photon’s energy determines its color: the more energy, the shorter the wavelength, the ‘bluer’ the color. An electron can only absorb or emit energy that lets it change levels, so it can only interact with certain colors of light.

What happens when an atom emits light?

Emission is the process of elements releasing different photons of color as their atoms return to their lower energy levels. Atoms emit light when they are heated or excited at high energy levels. Absorption occurs when electrons absorb photons which causes them to gain energy and jump to higher energy levels.

What part of the atom emits light?

Light is the result of electrons moving between defined energy levels in an atom, called shells. When something excites an atom, such as a collision with another atom or a chemical electron, an electron may absorb the energy, boosting it up to a higher-level shell.

What happens to an electron that emits a photon of light?

When an electron is hit by a photon of light, it absorbs the quanta of energy the photon was carrying and moves to a higher energy state. Electrons therefore have to jump around within the atom as they either gain or lose energy.

Can light travel indefinitely?

If there were no objects to absorb light, it would keep traveling forever. Light is made up of particles called photons that travel like waves. Unless they interact with other particles (objects), there is nothing to stop them. If it is infinite, the light would travel forever.

Can light travel through empty space?

Like other waves, light waves can travel through matter, but light waves are different from water waves and sound waves. In empty space, light travels at a speed of about 300,000 km/s. Light travels so fast that light emitted from the Sun travels 150 million km to Earth in only about eight and a half minutes.