science

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Across
  1. 2. A collective term for protons and neutrons, the particles found in an atom's nucleus.
  2. 7. The ability of an atom to attract electrons towards itself in a chemical bond.
  3. 8. The arrangement and organization of atoms within a molecule or compound.
  4. 9. A positively charged subatomic particle found in the nucleus of an atom.
  5. 10. The capacity to do work or produce heat, often associated with the movement of electrons.
  6. 14. A negatively charged subatomic particle that orbits the nucleus of an atom.
  7. 15. An uncharged subatomic particle found in the nucleus of an atom.
  8. 18. An alkali metal used in batteries and pharmaceuticals.
  9. 20. A transition metal element that is liquid at room temperature and used in thermometers.
  10. 21. Pertaining to ions or compounds formed by the transfer of electrons between atoms.
  11. 22. The basic unit of matter consisting of a nucleus (containing protons and neutrons) surrounded by electrons.
  12. 24. A rare earth element used in the production of fluorescent lamps and TV screens.
  13. 25. A nonmetal element known for its role in organic chemistry and life on Earth.
Down
  1. 1. The tendency of an object to resist changes in motion, analogous to an electron's resistance to changing energy levels.
  2. 3. Having no net electrical charge, as in an atom with equal numbers of protons and electrons.
  3. 4. A versatile element used in various industries, including hydrogen fuel cells.
  4. 5. The process of an electron moving between energy levels or orbitals within an atom.
  5. 6. The process of an atom or molecule undergoing a change in its electronic configuration.
  6. 11. The ability of an atom or molecule to undergo chemical reactions with other substances.
  7. 12. An atom or molecule that has gained or lost electrons, resulting in a net electrical charge.
  8. 13. A subatomic particle with almost no mass and no electrical charge, often produced in nuclear reactions.
  9. 16. A radioactive element commonly used in nuclear power generation.
  10. 17. A nonmetal element known for its distinctive smell and use in various industries.
  11. 19. Relating to or involving protons, such as protonic conductivity in certain materials.
  12. 23. Atoms of the same element that have the same number of protons but differ in the number of neutrons.