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Lecție 1
Atoms and elements
📖 Lecție
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🎯 Quiz — alege traducerea
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✅ Lecție parcursă
Everything around us — the table, water, you — is made of tiny particles called atoms. There are different kinds of atoms: the chemical elements. Each has a symbol: H is hydrogen, O is oxygen.
🧪 The periodic table collects all 118 known elements — the alphabet of the universe.
H
hidrogen
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He
heliu
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C
carbon
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N
azot
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O
oxigen
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Na
sodiu
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Mg
magneziu
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S
sulf
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Fe
fier
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Cu
cupru
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Ag
argint
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Au
aur
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