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  2. Alkaline earth metal - Wikipedia

    en.wikipedia.org/wiki/Alkaline_earth_metal

    2Be + C → Be 2 C CaO + 3C → CaC 2 + CO (at 2500 °C in furnace) CaC 2 + 2H 2 O → Ca(OH) 2 + C 2 H 2 Mg 2 C 3 + 4H 2 O → 2Mg(OH) 2 + C 3 H 4. Reaction with nitrogen. Only Be and Mg form nitrides directly. 3Be + N 2 → Be 3 N 2 3Mg + N 2 → Mg 3 N 2. Reaction with hydrogen. Alkaline earth metals react with hydrogen to generate saline ...

  3. Americium - Wikipedia

    en.wikipedia.org/wiki/Americium

    Its melting point of 1173 °C is significantly higher than that of plutonium (639 °C) and europium (826 °C), but lower than for curium (1340 °C). [ 45 ] [ 47 ] At ambient conditions, americium is present in its most stable α form which has a hexagonal crystal symmetry , and a space group P6 3 /mmc with cell parameters a = 346.8 pm and c ...

  4. Phosphorus - Wikipedia

    en.wikipedia.org/wiki/Phosphorus

    The high-energy beta particles from 32 P penetrate skin and corneas and any 32 P ingested, inhaled, or absorbed is readily incorporated into bone and nucleic acids. For these reasons, personnel working with 32 P is required to wear lab coats, disposable gloves, and safety glasses, and avoid working directly over open containers.

  5. Delhi - Wikipedia

    en.wikipedia.org/wiki/Delhi

    Delhi, [a] officially the National Capital Territory (NCT) of Delhi, is a city and a union territory of India containing New Delhi, the capital of India.Straddling the Yamuna river, but spread chiefly to the west, or beyond its right bank, Delhi shares borders with the state of Uttar Pradesh in the east and with the state of Haryana in the remaining directions.