Excitation - Revision history

NRJC: /* Key Stage 5 */

2024-05-30T10:11:15Z

‎Key Stage 5

NRJC at 10:10, 30 May 2024

2024-05-30T10:10:49Z

NRJC: Created page with "==Key Stage 5== ===Meaning=== Excitation is the process in which an atom absorbs energy without ionizing, causing an electron to move from a low..."

2024-05-30T10:09:42Z

Created page with "==Key Stage 5== ===Meaning=== Excitation is the process in which an atom absorbs energy without ionizing, causing an electron to move from a low..."

New page

==Key Stage 5==
===Meaning===
[[Excitation]] is the process in which an [[atom]] absorbs [[energy]] without [[Ionisation|ionizing]], causing an [[electron]] to move from a lower to a higher [[Energy Level|energy level]].

===About Excitation===
*'''Excitation''' occurs when an [[electron]] absorbs a [[photon]] or [[energy]] from a collision and jumps to a higher [[Energy Level|energy level]].
*The [[atom]] remains [[Neutral Charge|neutral]] as the [[electron]] is not removed from the [[atom]].
*The excited state is usually unstable, and the [[electron]] will soon return to a lower [[Energy Level|energy level]], [[emit]]ting [[energy]] in the form of a [[photon]].
*'''Excitation''' is important in understanding the [[Emit|emission]] spectra of [[element]]s and the operation of lasers.
===Examples===

*[[Neon]] signs glow due to the '''excitation''' of [[Neon]] [[atom]]s and subsequent [[Emit|emission]] of light.
*[[Fluorescent]] lamps work by '''exciting''' [[Mercury (Element)|Mercury]] vapor, which then [[emit]]s [[ultraviolet]] [[Visible Light|light]] that causes the [[phosphor]] coating to glow.

@@ Line 1: / Line 1: @@
 ==Key Stage 5==
 ===Meaning===
-[[Excitation]] is the process in which an [[atom]] absorbs [[energy]] without [[Ionisation|ionizing]], causing an [[electron]] to move from a lower to a higher [[Energy Level|energy level]].
+[[Excitation]] is the process in which an [[atom]] absorbs [[energy]] without [[Ionisation|ionising]], causing an [[electron]] to move from a lower to a higher [[Energy Level|energy level]].
 ===About Excitation===

@@ Line 7: / Line 7: @@
 *The [[atom]] remains [[Neutral Charge|neutral]] as the [[electron]] is not removed from the [[atom]].
 *The excited state is usually unstable, and the [[electron]] will soon return to a lower [[Energy Level|energy level]], [[emit]]ting [[energy]] in the form of a [[photon]].
-*'''Excitation''' is important in understanding the [[Emit|emission]] spectra of [[element]]s and the operation of lasers.
+*'''Excitation''' is important in understanding the the [[Absorption Spectra|absorption]] and [[Emission Spectra|emission spectra]] of [[atom]]s and the operation of LASERs.
 ===Examples===
 *[[Neon]] signs glow due to the '''excitation''' of [[Neon]] [[atom]]s and subsequent [[Emit|emission]] of light.
 *[[Fluorescent]] lamps work by '''exciting''' [[Mercury (Element)|Mercury]] vapor, which then [[emit]]s [[ultraviolet]] [[Visible Light|light]] that causes the [[phosphor]] coating to glow.