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Há 1 dia · Gold is a chemical element with the symbol Au (from the Latin word aurum) and the atomic number 79. In its pure form, it is a bright, slightly orange-yellow, dense, soft, malleable, and ductile metal. Chemically, gold is a transition metal, a group 11 element, and one of the noble metals.
Há 1 dia · Porto Alegre - RS. Porto Alegre - RS → Agenda de Shows e Festivais, Lista atualizada diariamente.
Há 21 horas · Sodium is an alkali metal, being in group 1 of the periodic table. Its only stable isotope is 23 Na. The free metal does not occur in nature and must be prepared from compounds. Sodium is the sixth most abundant element in the Earth's crust and exists in numerous minerals such as feldspars, sodalite, and halite (NaCl).
Há 1 dia · Evildead – Toxic Grace Review. By Dr. A.N. Grier on May 21, 2024 in Reviews, Thrash Metal, 62 comments. Though Evildead has existed since the late ’80s, most people recognize them by founding member and guitarist, Juan Garcia. After leaving Agent Steel in 1987 (and before his return in 1998), Garcia conceived a thrash outfit in Evildead.
Há 1 dia · Plutonium is a chemical element; it has symbol Pu and atomic number 94. It is an actinide metal of silvery-gray appearance that tarnishes when exposed to air, and forms a dull coating when oxidized. The element normally exhibits six allotropes and four oxidation states.
Há 2 dias · Tellurium is a chemical element; it has symbol Te and atomic number 52. It is a brittle, mildly toxic, rare, silver-white metalloid. Tellurium is chemically related to selenium and sulfur, all three of which are chalcogens. It is occasionally found in its native form as elemental crystals. Tellurium is far more common in the Universe as a whole ...
Há 1 dia · Iridium is a chemical element; it has symbol Ir and atomic number 77. A very hard, brittle, silvery-white transition metal of the platinum group, it is considered the second-densest naturally occurring metal (after osmium) with a density of 22.56 g/cm 3 (0.815 lb/cu in) [8] as defined by experimental X-ray crystallography. [a] 191 Ir and 193 Ir ...
