Isotopes Puzzle

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Across
  1. 2. Its abundant isotope is 11B and the atomic weight is approximately 10.81; it’s essential in making borosilicate glass.
  2. 4. Identified by isotope 28Si and an atomic weight close to 28.085, this element is central to electronics and glass production.
  3. 5. With isotope 39K and an atomic weight around 39.098, this element is essential for proper heart and muscle function.
  4. 8. With the isotope 31P and an atomic weight of about 30.974, this element is crucial for DNA and energy transfer.
  5. 11. Characterized by isotope 14N and an atomic weight of about 14.007, this element makes up most of our air.
  6. 13. Marked by isotope 32S and an atomic weight around 32.06, this element is often associated with the distinct smell of hot springs.
  7. 15. Identified by isotope 40Ca and an atomic weight of roughly 40.078, this element is the main mineral in bones and teeth
  8. 16. This element, with isotope 9Be and an atomic weight around 9.0122, is a rare constituent of the Earth’s crust.
  9. 17. The most common isotope is 12C with an atomic weight near 12.011 – a fundamental building block of life.
  10. 18. Featuring the isotope 19F and an atomic weight around 18.998, this highly electronegative element is found in toothpaste.
Down
  1. 1. Featuring isotope 40Ar and an atomic weight near 39.948, this noble gas is used in some lighting and even in dating rocks.
  2. 3. Marked by the isotope 7Li and an atomic weight of roughly 6.94, this light metal is key in rechargeable batteries.
  3. 6. Possessing the sole stable isotope 27Al and an atomic weight around 26.982, this lightweight metal is common in foil and cans.
  4. 7. The isotope 24Mg and an atomic weight of roughly 24.305 indicate this element, which is vital in chlorophyll.
  5. 9. Its signature isotope is 20Ne and the atomic weight is approximately 20.180; this noble gas lights up neon signs.
  6. 10. Its most common isotope is 1H and its atomic weight is about 1.008.
  7. 12. With a predominant isotope of 4He and an atomic weight near 4.0026, this element is famously used in balloons.
  8. 13. With isotope 23Na and an atomic weight near 22.990, this element is a major component of table salt.
  9. 14. With isotope 16O and an atomic weight close to 15.999, this element is vital for respiration.
  10. 15. Its common isotope is 35Cl and the atomic weight is approximately 35.45; this element is also found in salt.