Periodic Table Elements

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Across
  1. 2. This element, with the symbol He, is a colorless, odorless gas used in balloons and is the second lightest element.
  2. 4. This element, with the symbol Fe, is crucial in both steel production and biological systems, such as hemoglobin.
  3. 5. The lightest element in the periodic table, with the symbol H.
  4. 8. A radioactive metal with the symbol U, used as fuel in nuclear reactors and has significant military applications.
  5. 10. Essential for respiration, with the symbol O, and supports combustion.
Down
  1. 1. A dense, malleable metal with the symbol Pt, often used in catalytic converters and jewelry.
  2. 3. A soft, silvery-white metal, the lightest of the alkali metals, with the symbol Li.
  3. 6. A precious metal, Au, with a distinct yellow color, known for its use in jewelry and as a monetary standard.
  4. 7. Element C, the foundation of life, found in all living organisms and is essential in organic chemistry.
  5. 9. A noble gas used in bright neon signs, with the symbol Ne.