Nitrogen element tile with atomic number 7 and symbol N, shown in both black and white styles for educational or scientific representation.
Schlüsselwörter
nitrogen,
element,
periodic table,
chemistry,
science,
symbol,
7,
education,
scientific,
illustration,
graphic,
icon,
learning,
discovery,
research,
laboratory,
formula,
atom,
molecular,
gas,
datum,
information,
molecular
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