Period (Chemistry) - Revision history

NRJC at 10:54, 2 February 2019

2019-02-02T10:54:07Z

NRJC at 19:58, 5 December 2018

2018-12-05T19:58:10Z

NRJC at 09:20, 1 October 2018

2018-10-01T09:20:04Z

NRJC: Created page with "==Key Stage 3== ===Meaning=== A Period is a row on the Periodic Table whose elements all have the same number of Electron Shells. ===About Periods=== : Atom..."

2018-10-01T09:12:49Z

Created page with "==Key Stage 3== ===Meaning=== A Period is a row on the Periodic Table whose elements all have the same number of Electron Shells. ===About Periods=== : Atom..."

New page

==Key Stage 3==
===Meaning===
A [[Period]] is a row on the [[Periodic Table]] whose [[element]]s all have the same number of [[Electron Shell]]s.

===About Periods===
: [[Atomic Number]] increases as you move along a [[period]].

@@ Line 43: / Line 43: @@
 The [[reactivity]] decreases as you go across the [[Period (Chemistry)|period]] because:
 *The outer [[electron]]s are all roughly the same distance away from the [[Atomic Nucleus|nucleus]].
-*The [[charge]] on the [[Atomic Nucleus|atomic nucleus]] increases as you move go across the [[period]] but the [[electron]] shielding caused by the two inner [[electron]]s remains the same. This causes the [[electron]]s to experience a greater [[force]] of [[attraction]] as you move along the [[period]], making it harder for the [[atom]]s to lose [[electron]]s and become [[ion]]s.
+*The [[Electrical Charge|charge]] on the [[Atomic Nucleus|atomic nucleus]] increases as you move go across the [[period]] but the [[electron]] shielding caused by the two inner [[electron]]s remains the same. This causes the [[electron]]s to experience a greater [[force]] of [[attraction]] as you move along the [[period]], making it harder for the [[atom]]s to lose [[electron]]s and become [[ion]]s.
 [[Nitrogen]], [[Oxygen]] and [[Fluorine]] can all gain [[electron]]s to become [[Negative Charge|negative]] [[ion]]s in certain [[Chemical Reaction|reaction]]s.
@@ Line 49: / Line 49: @@
 The [[reactivity]] increases as you go across the [[Period (Chemistry)|period]] because:
 *The outer [[electron]]s are all roughly the same distance away from the [[Atomic Nucleus|nucleus]].
-*The [[charge]] on the [[Atomic Nucleus|atomic nucleus]] increases as you move go across the [[period]] but the [[electron]] shielding caused by the two inner [[electron]]s remains the same. This causes the [[electron]]s to experience a greater [[force]] of [[attraction]] as you move along the [[period]], making it easier for an [[atom]]s to gain more [[electron]]s to become [[ion]]s.
+*The [[Electrical Charge|charge]] on the [[Atomic Nucleus|atomic nucleus]] increases as you move go across the [[period]] but the [[electron]] shielding caused by the two inner [[electron]]s remains the same. This causes the [[electron]]s to experience a greater [[force]] of [[attraction]] as you move along the [[period]], making it easier for an [[atom]]s to gain more [[electron]]s to become [[ion]]s.
 |}

@@ Line 1: / Line 1: @@
 ==Key Stage 3==
 ===Meaning===
-A [[Period]] is a row on the [[Periodic Table]] whose [[element]]s all have the same number of [[Electron Shell]]s.
+A '''period''' is a row on the [[Periodic Table]] whose [[element]]s all have the same number of [[Electron Shell]]s.
 ===About Periods===
-: [[Atomic Number]] increases as you move along a [[period]].
+: [[Atomic Number]] increases as you move along a '''period'''.
 {| class="wikitable"
@@ Line 22: / Line 22: @@
 | style="height:20px; width:300px; text-align:center;" |There is a trend in the [[Melting Point]]s as you move along the [[Period (Chemistry)|period]].
 | style="height:20px; width:300px; text-align:center;" |A similar trend can be seen in the next [[Period (Chemistry)|period]].
 |}

← Older revision		Revision as of 09:20, 1 October 2018
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	===About Periods===		===About Periods===
	: [[Atomic Number]] increases as you move along a [[period]].		: [[Atomic Number]] increases as you move along a [[period]].
		+
		+	{\| class="wikitable"
		+	\|-
		+	\|[[File:PeriodicTablePeriods.png\|center\|600px]]
		+	\|}
		+
		+	====Trends within Periods====
		+	: The [[Chemical Property\|chemical]] and [[Physical Property\|physical properties]] of [[element]]s change as you move along a [[Period (Chemistry)\|period]].
		+	{\| class="wikitable"
		+	\| style="height:20px; width:300px; text-align:center;" \|'''Period 2 Melting Points'''
		+	\| style="height:20px; width:300px; text-align:center;" \|'''Period 3 Melting Points'''
		+	\|-
		+	\|[[File:Period2MeltingPoints.png\|center\|300px]]
		+	\|[[File:Period3MeltingPoints.png\|center\|300px]]
		+	\|-
		+	\| style="height:20px; width:300px; text-align:center;" \|There is a trend in the [[Melting Point]]s as you move along the [[Period (Chemistry)\|period]].
		+	\| style="height:20px; width:300px; text-align:center;" \|A similar trend can be seen in the next [[Period (Chemistry)\|period]].
		+	\|}