Answers

2015-07-14T21:07:07+05:30
They are not formulas, they are symbols.
H- hydrogen
He- helium
Li- lithium
Be- beryllium
B- boron
C- carbon
N- nitrogen
O- oxygen
F- fluorine
Ne- neon
Na- sodium
Mg- magnesium
Al- aluminium
Si- silicon
P- phosphorus
S- sulphur
Cl- chlorine
Ar- argon
K- potassium
Ca- calcium
I hope it will be useful to you dear


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2015-07-15T12:21:57+05:30
Hydrogen-H
helium-He
lithium-Li
beryllium-Be
boron-B
carbon-C
nitrogen -N
oxygen-O
fluorine-F
neon-Ne
sodium-Na
magnesium-Mg
aluminium-Al
silicon-Si
phosphorous-P
sulphur-S
chlorine-Cl
argon-Ar
potassium-K
calcium-Ca
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