Chemistry key words

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Across
  1. 2. – A process where a solid changes directly into a gas without passing through the liquid phase.
  2. 3. – The outermost electrons in an atom that are involved in forming bonds.
  3. 6. Table – A tabular arrangement of elements, organized by increasing atomic number and grouped by similar properties.
  4. 9. – The smallest unit of an element, consisting of a nucleus and one or more electrons.
  5. 11. – A process that uses rapid spinning to separate components of a mixture based on their density.
  6. 12. – A neutral subatomic particle found in the nucleus of an atom.
  7. 14. – A subatomic particle with a negative charge that orbits the nucleus of an atom.
  8. 15. – A technique used to separate a substance from a mixture by dissolving it into a solvent.
  9. 17. – A positively charged subatomic particle found in the nucleus of an atom.
  10. 18. Number – The number of protons in the nucleus of an atom, which defines the element and its position in the periodic table.
  11. 19. here are the terms and their definitions:
Down
  1. 1. – A separation process that involves boiling a liquid to create vapor and then condensing the vapor back into liquid to separate components based on boiling points.
  2. 4. – A technique used to separate solids from liquids or gases using a filter that allows only the fluid to pass through.
  3. 5. – The central part of an atom, containing protons and neutrons.
  4. 7. Mass – The weighted average mass of an atom of an element, based on the masses of its isotopes and their relative abundances.
  5. 8. – A region in an atom where there is a high probability of finding electrons.
  6. 10. – The process of adding or removing electrons from an atom or molecule to create ions.
  7. 11. – A technique used to separate mixtures into their individual components based on differences in their movement through a medium.
  8. 13. Number – The number of neutrons in an atom’s nucleus, which, along with the proton number, determines the isotope of the element.
  9. 15. Configuration – The arrangement of electrons in the orbitals of an atom.
  10. 16. – Atoms of the same element with the same number of protons but different numbers of neutrons.