1 to 20 elements with their symbols atomic number electronic configuration
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14
Si
silicon
2.8.4
15
P
phosphorus
2.8.5
16
S
sulfur
2.8.6
17
Cl
chlorine
2.8.7
18
Ar
argon
2.8.8
19
K
potassium
2.8.8.1
20
Ca
calcium
2.8.8.2
i hope its help you.
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