5. Write the symbol and names of first 20 elements. (Chemistry)
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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
hope this helps u
Answered by
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Answer:
- HYDROGEN-H
- HELIUM-He
- LITHIUM-Li
- BERYLLIUM-Be
- BORON-B
- CARBON-C
- NITROGEN-N
- OXYGEN-O
- FLUORINE-F
- NEON-Ne
- SODIUM-Na
- MAGNESIUM-Mg
- ALUMINUM-Al
- SILICON-Si
- PHOSPHORUS-P
- SULPHUR-S
- CHLORINE-Cl
- ARGON-Ar
- POTASSIUM-K
- CALCIUM-Ca
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