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Chemistry Portfolio

Marissa Aycan & Yael Boyd

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Across
2.It is solid at room temperature but has a melting point of just 29 degrees Celsius.
4.The metal which has the highest melting point.
6.This element is considered to be the second most frequent cause of lung cancer.
9.Together with technetium, it is the only relatively light element in the table that has no stable isotopes.
11.Element named after Copenhagen, Denmark.
12.May be the rarest naturally-occurring element in the earth's crust, appearing to only have 28g of it on the earth's crust.
14.Never to be mixed with ammonia!
16.A lustrous, hard, steel-gray metallic element, resistant to tarnish and corrosion and found primarily in chromite.
18.This element was discovered in the debris of the first hydrogen bomb explosion in 1952.
21.This element and its compounds are used in insecticides, weed killers, solid-state doping agents, and various alloys.
22.It is one of the most commonly used materials for radiation shielding.
23.A silvery-white, ductile metallic element, the most abundant in the earth's crust but found only in combination, chiefly in bauxite.
24.Most electronegative and reactive of all the elements.
25.The name originates from the Greek word 'argos' meaning inactive.
26.Also called quicksilver.
28._______-176 has been used to date the age of meteorites.
33.Lustrous, violet-black, corrosive, poisonous halogen element.
34.A whitish, largely inert gaseous element used chiefly in gas discharge lamps and fluorescent lamps.
35.Most abundant metal ion in the human body.
36.The only alkali metal that reacts with nitrogen.
38.This element was first created on Feb. 9th, 1996 in a lab in Germany.
39.The 6th most abundant element on earth that is soft enough to cut through with a butter knife at room temperature.
Down
1.An element you can melt into liquid form by holding a lump of it in the warmth of your hand.
3.A soft, silvery-white alkaline-earth metal, used to deoxidize copper and in various alloys.
5.Used in glass for color television and cathode ray tubes to prevent X-ray emission.
7.Densest natural element with a blue-gray tint.
8.Soft, silvery-white, malleable, ductile, metallic rare-earth element, often obtained from monazite and bastnaesite.
10.A radioactive transuranic element synthesized by bombarding einsteinium with alpha particles.
13.The first element to be made artificially.
15.This element is used extensively by the chemical industry where corrosive agents are employed.
17.The only atom for which the Schrodinger equation has an exact solution.
19.This element is one of the most important elements in the living cell, appearing in two types of amino acids and in countless other compounds.
20.Glowing noble gas that is quite rare on earth, but abundant through the universe.
27.The most active naturally occurring metal.
29.It is regarded as the most toxic of all the elements.
30.This elements alpha particle emissions are used in radiotherapy.
31.This is one of four elements named after the small Swedish town of Ytterby (and is not ytterbium, erbium and terbium).
32.Element that only reacts with fluorine.
35.Named for physicist Marie Curie and is so radioactive it glows in the dark.
37.A soft, yellow, corrosion-resistant element.

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