Oro: Kemiala elemento 79
| Oro | |
| Nomo | Oro |
| Simbolo | Au |
| Atomala nombro | 79 |
| Kemiala serio | Transita metalo |
| Atomala pezo | 196,96 UMA |
| Elektronala figuro | [Xe] 4f14 5d10 6s1 |
Oro esas metalo flava, tre precoza, tre densa, tre duktila, tre maleebla, nealterebla per aero nek per aquo, quan onu uzas (aloyita kun kelka kupro) por facar monetopeci granda-valora, juveli, e.c. Ol havas kemiala simbolo Au ed atomala nombro 79.
Oro rezistas a la maxim multa acidi, tamen ol dissolvas en la nomizita aqua regia, mixo di klor-acido ed azot-acido.
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