Period 3 Element

A period 3 element is one of the chemical elements in the third row (or period) of the periodic table of the elements. These are:
Chemical elements in the third period
Group 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
#
Name
11
Na
12
Mg
13
Al
14
Si
15
P
16
S
17
Cl
18
Ar
e--conf.
Alkali metalsAlkaline earthsLanthanideActinidesTransition metals
Poor metalsMetalloidsNonmetalsHalogensNoble gases

 

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