Across
- 4. chemical symbol Zn, this metal in combination with copper forms the alloy known as brass; in biology it is an essential mineral in prenatal and postnatal development
- 5. chemical symbol Ca, it is the 5th most abundant element in the human body and is necessary for protein synthesis and bone formation
- 6. chemical symbol Al, this metal is prized by the aerospace industry for its resistance to corrosion and low density
- 9. chemical symbol Br,it is used in commercial pools as a substitute for chlorine and compounds formed by this element are useful fire retardants
- 13. chemical symbol Fe, it forms most of the Earth's outer and inner core
- 15. chemical symbol Mg, this shiny grey metal is prized for its lightness and stength and is less dense than aluminum
- 18. chemical symbol Ar,this noble gas is used as an inert shielding gas in welding and is used in flourescent lighting
- 19. chemical symbol N, it makes up 78% of the Earth's atmosphere and is found in ammonia and amino acids
- 21. chemical symbol Ni, it has historically been used to plate iron and brass
- 22. chemical symbol Cl, it is a common component in pool disinfectants and is one of the two elements in rock salt
- 25. chemical symbol S, it historically has been called brimstone which means "burning stone"
- 28. chemical symbol Cr, this element is the main additive in stainless steel and is prized for its resistance to tarnishing
- 30. The lightest and most abundant element in the universe and has the chemical symbol H
- 32. chemical symbol As, it is classified as a group-A carcinogen and is often found in car batteries,ammunition, herbicides and pesticides
- 34. chemical symbol P, it's name comes from Greek mythology meaning "glow after illumination" and is a common component in fertilizers
- 35. chemical symbol Na,this silvery white metallic element is one of the two elements found in rock salt and is highly water-soluble.
- 36. chemical symbol Ga, it is considered a technology-critical element often found in semiconductors and circuits
Down
- 1. chemical symbol Se, it is found in metal sulfide ores where it partially replaces the sulfur. Produced mainly as a byproduct in these refining processes it does still have uses in DC power surge protectors
- 2. chemical symbol Be, it can be used as window material in x-ray equipment and is a relatively stable element
- 3. chemical symbol Sc,discovered in 1879 in Scandinavia it has historically been classified as a rare Earth element
- 7. chemical symbol F, this highly reactive element is often added to metal ores to lower their melting point for smelting
- 8. chemical symbol Ge, it was discovered by a German scientist and has uses in fibre-optics and LEDs
- 10. chemical symbol O, it makes up 21% of Earth's atmosphere and is constantly replenished through the photosynthesis process
- 11. chemical symbol V, this element is used by some ocean algae as an active center of enzymes
- 12. chemical symbol Ti, this metal can be cobined with many other metal alloys that produce strong but lightweight metals useful for the aerospace industry
- 14. chemical symbol Mn, this element is often found in minerals in combination with iron; when found in the body in large amounts it acts as a neurotoxin
- 16. chemical symbol B, it is often found combined with other chemicals as an additive in fiberglass, used in ceramics or in acidic format for use in fertilizers
- 17. chemical symbol K,its ions are a vital for normal nerve function in the human body and can be found in many fresh fruits and vegetables
- 20. chemical symbol He, it is the first of the noble gases
- 23. chemical symbol Si, it is often used in clays and stones, but is also found in pure form for circuit chips in computers and cell phones
- 24. chemical symbol C, it's most common alltropes are graphite and diamonds and it is the 2nd most common element in the human body by mass after oxygen
- 26. chemical symbol Kr, like most noble gases it is used in lighting and photography
- 27. chemical symbol Li, its salts have a mood-stablizing property that makes it have treatment applications for those with bipolar disorder
- 29. chemical symbol Cu, it is often used in building for roofing as well as historically for plumbing; develops a green patina as it oxidizes
- 31. chemical symbol Ne this element as a gas is colorless and odorless, but does exhibit an orange-red glow when placed in an electric field
- 33. chemical symbol Co, its bluish gray pigment is often used in jewelry and to impart a blue tint to glass