Quick Answer: What Are The 12 Elements?

Where is Silicon found in the earth?

Silicon is present in the sun and stars and is a principal component of a class of meteorites known as aerolites.

It is also a component of tektites, a natural glass of uncertain origin.

Silicon makes up 25.7% of the earth’s crust, by weight, and is the second most abundant element, being exceeded only by oxygen..

What are the first elements?

The first elements — hydrogen and helium — couldn’t form until the universe had cooled enough to allow their nuclei to capture electrons (right), about 380,000 years after the Big Bang.

What is the name of 119 Element?

UnunenniumUnunennium, also known as eka-francium or element 119, is the hypothetical chemical element with symbol Uue and atomic number 119. Ununennium and Uue are the temporary systematic IUPAC name and symbol respectively, which are used until the element is discovered, confirmed, and a permanent name is decided upon.

What is the 14 element?

SiliconSilicon is a chemical element with the symbol Si and atomic number 14.

What is the color of cadmium?

silveryCadmium is a silvery metal with a bluish tinge to its surface. Cadmium is a poison and is known to cause birth defects and cancer. As a result, there are moves to limit its use. 80% of cadmium currently produced is used in rechargeable nickel-cadmium batteries.

Can cadmium kill you?

Breathing high levels of cadmium can cause death and severe lung damage. Eating food or drinking water with very high levels can hurt the stomach, causing vomiting or diarrhea. … It is not known if humans will get these diseases from cadmium. Cadmium may cause cancer.

Why is cadmium bad for you?

Cadmium and its compounds are highly toxic and exposure to this metal is known to cause cancer and targets the body’s cardiovascular, renal, gastrointestinal, neurological, reproductive, and respiratory systems.

How many elements are there on Earth?

118 elementsOf these 118 elements, 94 occur naturally on Earth. Six of these occur in extreme trace quantities: technetium, atomic number 43; promethium, number 61; astatine, number 85; francium, number 87; neptunium, number 93; and plutonium, number 94.

Which element is the oldest?

PhosphorusThe oldest chemical element is Phosphorus and the newest element is Hassium. Please note that the elements do not show their natural relation towards each other as in the Periodic system.

What is the rarest element?

AstatineDensity (near r.t. ) Astatine is a chemical element with the symbol At and atomic number 85. It is the rarest naturally occurring element in the Earth’s crust, occurring only as the decay product of various heavier elements.

What is the heaviest metal on earth?

OsmiumOsmium is one of the heaviest materials on earth, weighing twice as much as lead per teaspoon. Osmium is a chemical element in the platinum group metals; it’s often used as alloys in electrical contacts and fountain pen nibs.

What is the 92 element?

UraniumUranium is a chemical element with the symbol U and atomic number 92. It is a silvery-grey metal in the actinide series of the periodic table. A uranium atom has 92 protons and 92 electrons, of which 6 are valence electrons.

What are the first 20 elements?

The first 20 elements and their symbols are:Hydrogen (H)Helium (He)Lithium (Li)Beryllium (Be)Boron (B)Carbon (C)Nitrogen (N)Oxygen (O)More items…•

Can osmium kill you?

Unfortunately, Osmium forms a nasty compound, Osmium tetroxide , when exposed to air. Osmium Tetroxide is toxic, volatile, water soluble, and really wants to kill you. Don’t do it. … It’s shiny, inert at room temperature, non-toxic, and extremely dense.

Where is cadmium most commonly found?

Sources of cadmium It is most often found in small quantities in zinc ores, such as sphalerite (ZnS). Cadmium mineral deposits are found in Colorado, Illinois, Missouri, Washington and Utah, as well as Bolivia, Guatemala, Hungary and Kazakhstan.

What is the most useful element?

SiliconSilicon is one of the most useful elements to mankind. Most is used to make alloys including aluminium-silicon and ferro-silicon (iron-silicon).

What are the six elements of life?

Although more than 25 types of elements can be found in biomolecules, six elements are most common. These are called the CHNOPS elements; the letters stand for the chemical abbreviations of carbon, hydrogen, nitrogen, oxygen, phosphorus, and sulfur.

What is the 20th element?

Calcium is a chemical element with the symbol Ca and atomic number 20. As an alkaline earth metal, calcium is a reactive metal that forms a dark oxide-nitride layer when exposed to air.

What is the 12 element on the periodic table?

Osmium – Element information, properties and uses. Periodic Table.

What are the 10 elements?

Terms in this set (10)Hydrogen. H.Helium. He.Lithium. Li.Beryllium. Be.Boron. B.Carbon. C.Nitrogen. N.Oxygen. O.More items…

What’s the densest thing on earth?

element osmiumAt the modest temperatures and pressures of Earth’s surface, the densest known material is the metallic element osmium, which packs 22 grams into 1 cubic centimetre, or more than 100 grams into a teaspoonful. Even osmium is full of fluff, however, in the form of electron clouds that separate the dense atomic nuclei.