the rarest element on Earth (approx 28g in the Earth's entire crust.)
often called the most expensive substance in the world (as much as $68 million for one gram.)
A very corrosive compound that will be able to dissolve glass.
But is still considered to be a weak acid
Added as 30% of car tires. It is added to rubber to strengthen it. It also helps it to prevent against U.V. damage.
Futhermore it gives the rubber the black color.
What are the 5 phases?
SOLID, LIQUID, GAS, PLASMA and BOSE EINSTEINIUM
Why does Cesium have the lowest ionization potential and not Francium
cesium has lowest ionization potential. because ionization potential decreases as the size of the element increases .so cesium being smaller than francium having the lowest ionization potential in the long form of periodic table,because francium is radio active .
Name three allotropes of Carbon
Diamond, Graphite, and Fullerene
When and what is the first noble gas produced?
Xenon hexaflouroplatinate (XePtF6) is the first compound with a noble gas in it. It was first produced by Neil Bartlett in 1962.
What element has the fastest half-life>
Berrylium-8 has the shortest half-life, 70 x 10^-18 seconds, or 0.000000000000000070 seconds.
What is the lowest temp reached in the laboratory?
7 nanokelvins, very near to absolute zero. The temperature was reached when helium was cooled to become a superfluid
What is a superfluid?
a fluid that could defy gravity.
Example: Helium at very low temp
The back of your had is called
The term for female cockcroach?
What is the most luminous star?
Pistol star: 10 million times the power of the sun and as big as the size of earth's entire orbit around the sun.
What is a BEC?
BEC (Bose-Einstein Condensate) is a supercooled substance that contain no individual atom.The first BEC was created at the university of Colorado in 1995 by cooling a sample of Rubidium gas atoms to about 0.00000017K through laser cooling and further cooled in "optical molasses"
Aquatic creature with a tongue bigger than a bus?
What and were was coldest temperature on Earth recorded?
The coolest temperature that record in Antarctica is -168.2 degrees Celsius..
A naturally occurring material that is broken down by processes of weathering and erosion, and is subsequently transported by the action of wind, water, or ice, and/or by the force of gravity acting on the particle itself.
How long is the interval between blinks in humans?
5 secs: To protect eyes from dust
it refers to the body of knowledge obtained by methods based on systematic observation
the deepest lake in the world as ever
Lake baikal - Situated in south-east Siberia
It is 50000 degrees celsius which is 3to 5 times hotter than the surface of the sun
Does 7-Up contain lithium?
The original formula for 7-Up contained lithium citrate, a chemical used today as a treament for bipolar disorders. The ingredient was ultimately removed by 1950.
Where does cashmere wool come from?
Cashmere comes from the wool of the Kashmir goat from the mountains around the Kashmir region of India.
The only elements that are liquid at room temperature?
Bromine (Br) and Mercury (Hg). However, you can melt Gallium (Ga) by holding a lump in the warmth of your hand.
The element that is solid at room temperature but melts by the warmth of hands?
The most common compound that does not compress when freeze?
Unlike many substances, water expands as it freezes. An ice cube takes up about 9% more volume than the water used to make it.
Will salt increase or decrease the level of water in a container?
Decrease: If you pour a handful of salt into a full glass of water, the water level will actually go down rather than overflowing the glass.
Average amount of salt in an adult human body
1/2 lb or 250 g of salt (NaCl)
What is the chemical name for water?
The chemical name for water (H2O) is dihydrogen monoxide.
The ONLY Letter that doesn't appear in the periodic table?
What is produced by lightning strikes? It strengthen the ozone layer of the atmosphere.
The ONLY 2 non-silvery metals?
Gold (Ag) and Copper (Cu).
Oxygen gas is colorless. But the color exhibited by its Liquid and Solid form is?
Who many pencils can the carbon of a human body can produce?
The human body contains enough carbon to provide 'lead' (which is really graphite) for about 9,000 pencils.
The most abundant element in the universe?
The most abundant element in the earth's atmosphere, crust, and oceans (about 49.5%)
One bucket full of water contains more atoms than there are bucketfuls of water in the Atlantic ocean. True or False
Produces approximately 20% of the oxygen in the atmosphere?
Bee stings are acidic while Wasp stings are?
Molecule that gives Hot peppers there heat?
What molecule can't be detected by birds because they lack the receptor for it?
Capsaicin. They are immune to the burning sensation from exposure to hot/chilly flavors
Dry ice is the solid form of?
Carbon dioxide, CO2.
Liquid compoung that has a bluish tint, aside for water.
____ is actually a liquid, it just flows very, very slowly. Same with asphalt.
The co-discoverer's of DNA double helix?
Watson and Crick: They never actually ran any experiments on their own, but rather read deeply into others’ work and deduced the structure.
The element that can alter how you think and has been known to “cure” certain mental illnesses.
It is used in a lot of psychoactive drugs.
Hot water freezes quicker than cold water.
True or False?
A radioactive water that was originally thought of as a healthy drink?
Diamonds aren’t the rarest gems on Earth. In fact, they’re relatively common. The rarest gem is? And it costs about $3 million per carat
Liquid oxygen same as Liquid air is color?
The reason why policemen are called Cops?
Cops got the nickname because buttons on their uniforms use to be made of copper metal. In England, policemen were nicknamed "coppers" and the US has shortened this to "cops."
What is a ONE giant molecule that can be seen in cars?
Rubber like you see on wheels of vehicles is actually one giant molecule.
How can Graphite be transformed to Diamonds?
By applying a temperature of 3000°C and pressure of 100,000 atm
A 3-dimensional crystalline structures that are stabilized by small molecules such as methane, ethane, propane, carbon dioxide?
Is it possible for Snowballs to burn? Yes or No
YES: Under the right conditions, snow can form from hydrates instead of pure water.
Hydrates: 3-dimensional crystalline structures that are stabilized by small molecules such as methane, ethane, propane, carbon dioxide
Snowballs made from hydrates will actually burn due to the hydrocarbons trapped in their water crystals.
Which Vitamin is a type of alcohol(C20H29-OH). It contains an ionone ring and hydrocarbon chain
How hot is a lightbulb's filament?
The tungsten filament inside an incandescent lightbulb reaches a temperature of 4,664 degrees Fahrenheit when turned on.
What trace element if turquoise give its distinctive blue color
One of the most well known radially symmetirc animal that do not have brains.
What is the name of the pigment that gives the green colour to plants?
This metal oxide is often added to paint to make it bright white.
Titanium dioxide (TiO2): is a brilliant white, non-toxic solid often used as a pigment in paints.
Compounds of lead used to be used as pigments in paint, but have been phased out due to their toxicity.
A metal oxide that is used in sunscreens and to coat paper. To give it white pigment.
What is the pigment in the skin of oranges that gives it the orange colour?
Carotene: is a large organic molecule that absorbs light at around 450 nanometres (the blue region of the visible spectrum), meaning that it appears orange.
Green oranges: contain chlorophyll in their skins, but this is gradually lost and replaced with carotene as the fruit matures.
A feature of organic molecules which means it contains alternating single and double bonds.
Henna has been used since ancient times to dye hair. But what is the compound present in henna that creates the red colour?
Lawsone: organic molecule that absorbs visible light, making it coloured.
A common feature of all organic molecules that absorb visible light is conjugation - this means that the molecule contains alternating single and double bonds.
The more extensive the conjugation, the stronger the absorption.
The "-one" in the name lawsone refers to the presence of ketone (C=O) groups. These are in conjugation with a benzene ring in lawsone, giving an extended conjugated system.
What is the name of the pigment present in hair that gives it a dark colour?
Melanin: dark brown/black pigment also found in skin. Freckles are small concentrations of melanin.
What compound determines the darkness or lightness of ones skin?
Aside from Melanin? What is the other pigment that gives a red-brown or yellow-brown pigment to ones hair?
Hair also contains another pigment called phaeomelanin. The relative amounts of melanin and phaeomelanin in your hair determine its colour.
This dye can be obtained from the woad plant and has been used for centuries as a blue colourant.
Indigo was originally derived from plants such as woad and gives a rich blue-purple colour when used as a dye.
The color indigo can be synthesised from what compound?
What is the name of the pigment that gives tomatoes their red colour?
Lycopene: also found in pink grapefruit, guava and watermelon. A number of studies have suggested that lycopene may be a useful cancer-preventative agent.
The gemstones ruby and sapphire are both forms of aluminium oxide - alumina (Al2O3). Their different colours are caused by metal ion impurities replacing aluminium ions at random points throughout the structure. Which metal ion impurity is responsible for ruby's red colour?
Chromium 3+ (Cr3+) the wavelength of the light absorbed by the substance in question is what gives it its colour
Alumina with both iron 3+ and titanium 4+ impurities: gives the blue stone known as sapphire
Alumina with iron 3+ impurities: gives the amber-coloured stone known as topaz.
This expensive spice has a beautiful yellow colour and is used not only in food, but also as a dye.
Crocin is the name of the molecule responsible for saffron's glorious yellow colour
It's a very large, conjugated molecule with a similar structure to that of carotene. It is the molecule responsible for saffron's glorious yellow colour
Crocin: The name crocin derives from the fact that saffron is produced from the crushed stigma of autumn crocus flowers. Centuries ago, saffron was used to dye the robes of Irish royalty.
What is the name of the red stain obtained from cochineal insects?
Carmine: a very large metal complex with an aluminium ion at its centre.
Used as a biological stain in medical laboratories.
It takes 70,000 insects to produce one pound of carmine! In solution form, it is known as cochineal extract and is used as a food colouring.
This is a very sneaky compound, one of many disguised in my standard drain cleaner. It is a highly corrosive compound that was already known in ancient times
Sulfuric acid, with a chemical formula of H2SO4.
A chemical compound found in many personal hygiene concoctions. Commonly known as Potash
Potassium Hydroxide, KoH
Other than NaCl, a salt compound used to give a salty taste without increasing the sodium content too much. Commonly found in pickels and canned goods.
Calcium chloride, CaCl2
Acid found in grape and prunes. It is responsible for lowering the pH in wines to levels where bacteria cease to grow
Tartaric Acid, C4H6O6
One of the main components of explosives. It is also used in glass, food preservatives, and rocket fuel. Commonly known as saltpeter.
Sodium nitrate, NaNO3
The discoverer of gallium (Ga) gave that element the name of his own 'home-area'. Which one was that?
Paul Emile Lecoq was a Frenchman. His name itself indirectly refers to France as the cock ('gallus' (in Latin)) is the national symbol.
Bromine (Br) got its name from the Greek word bromos which means: __________?
Arsenic (As) got its name from Greek arsenikhos, which means?
Nickel got its name after a German word for a mischievous demon who was supposed to have created a "false copper ore". Which of these other names of elements was also given after a German word for a gnome or evil spirit of the mines ?
Chromium (Cr) literally means 'coloured element'. Rubidium (Rb), which was discovered by the inventor of the Bunsen burner, Robert W. Bunsen, also refers to colour. What colour?
RED: as in ruby, the red-coloured precious stone. Or in rubicund. And in rubric: heading of a division of a book, marked in red.
Chemistry is a much more colourful subject than people might think. Chlorine ( Cl) is also related to a colour word.What colour?
Yellowish green: Chlorine might be called either greenish-yellow or yellowish-green.
Fluorine(F) is NOT colour-related, but means 'flowing'.
Names based on countries or continents are frequent: europium;americum;polonium; and indirectly indium. Also celebrities got their share:nobelium;einsteinium;mendelevium
Occasionally, mythological names pop up in chemical terms: thorium;uranium;neptunium;plutonium, etc.. What is the name "ammonia" derived from?
Salt from Ammon, Ammon is in Libya
Element named after the God of Sea
Element named after the Greek god of wealth and/or a planet?
Plutonium (Pu) after the Greek God of wealth Ploutos (not the Roman god of death Pluto!)
Element named after the rebellious son of Zeus.
Element that got its name for the color in its spectrum by its discoverers F. Reich and his assistant T. Richter. The name of the colour was "indigo" from Greek "indikhon" , which meant "Indian dye".
Which of these elements got its name from the Greek for 'hidden'?
Krypton (Kr) can be found in words such as encrypt, cryptogram
Element that refers to the sun?
Element that refers to the Greek moon.
Selenium (Se): Selene (moon)
Lithium (Li) is related to Greek lithos as in Greek lithography and means: _________ ?
Element that consist diamonds and means coal.
Carbonum/ Carbon (C)
Barium(Ba) at first sight looks as if it is named after the Italian town of Bari. In true fact it is named after Greek baros- heavy. Another chemical element whose name refers to 'heaviness' was discovered in 1781 by Karl W. Scheele. He gave it a Scandinavian name and called the newly found element 'heavy stone'. 'Sten' is the Scandinavian for stone, what is the full name of this element?
Has the highest melting point of any metal. It is used to harden steel. Also as a filament in electric lights since it can be drawn into wire as thin as one-thousandth of an inch.
What chemical element is indicated with the letter K, from Latin kalium, but is usually referred to with a nine-letter long name that refers to how it was originally obtained: ashes from vegetable matter burned in a pot?
Potassium: Potash can most easily be obtained by calcination of glasswort or saltwort. Next to lithium, potassium is the lightest solid element.