The comparative abundance of the elements

Almost all elements are found as compounds, however Oxygen, Nitrogen, and to a lesser extent sulfur, gold, silver and platinum are the only elements which can be found in almost there raw sate. The abundance of hydrogen and helium in this cosmic distribution of the elements, proves all the elements were formed by nuclear fusion in the stars, for example the Sun.

In the right image, hydrogen is the most abundant element in the universe, followed by helium, oxygen, carbon, neon, nitrogen, magnesium, The six very rare, highly radioactive elements poloniumastatinefranciumradiumactiniumand protactinium are not included, since any of these elements that were present at the formation of the Earth have decayed away eons ago, and their quantity today is negligible.

However, in contrast to the ordinary base and precious metals, rare earth elements have very little tendency to become concentrated in exploitable ore deposits. These elements are required as compounds so that livings things can use them. The abundance of elements decreases exponentially with the atomic number Z.

First, the rare earth elements with even atomic numbers 58Ce, 60Nd, Most abundances expressed are the mass ratios. These elements are required as compounds so that livings things can use them. The more abundant rare earth elements are each similar in crustal concentration to commonplace industrial metals such as chromium, nickel, copper, zinc, molybdenum, tin, tungsten, or lead.

They have frequently combined with each other to form common silicate minerals.

Essay/Term paper: The comparative abundance of the elements

Of the 17 elements that make up Second, the lighter rare earth elements are more incompatible because they have larger ionic radii and therefore more strongly concentrated in the continental crust than the heavier rare earth elements.

Peer Z are more abundant than their odd neighbors, this is what occurs on the curve, this effect sawtooth odd-even effect. These are both extremely rare, since on Earth they are only produced through the spontaneous fission of very heavy radioactive elements for example, uraniumthoriumor the trace amounts of plutonium that exist in uranium oresor by the interaction of certain other elements with cosmic rays.

The elements of the crust are graphed below, but only ones that are the most abundant due to the fact that the abundance of the other elements of the crust are too low to graph accurately on one graph. Living Things In living things plants, animals, people the six most abundant elements are carbon, hydrogen, oxygen, nitrogen, phosphorus and sulfur known as CHONPS.

Second, the lighter rare earth elements are more incompatible because they have larger ionic radii and therefore more strongly concentrated in the continental crust than the heavier rare earth elements.

These are thus extremely rare, since any primordial initial fractions of these in pre-Solar System materials have long since decayed and disappeared.

The crust is a formation of dips and hollows which are filled with water to form the oceans and seas. The even Z are more abundant than their neighboring odd. On Earth and in rocky planets in general, silicon and oxygen are far more common than their cosmic abundance.

Common soils and clays are silicates.

The Comparative Abundance Of The Elements Essay

There is a pronounced peak in abundance in the vicinity of iron Fe. Then the next most abundant elements are Iron 4. All elements lighter than oxygen have been removed from the crust in this way. The two least abundant rare earth elements thulium and lutetium are nearly times more common than gold.

In living things plants, animals, people the six most abundant elements are carbon, hydrogen, oxygen, nitrogen, phosphorus and sulfur. Living Things In living things plants, animals, people the six most abundant elements are carbon, hydrogen, oxygen, nitrogen, phosphorus and sulfur known as CHONPS.

The more abundant rare earth elements are similarly concentrated in the crust compared to commonplace industrial metals such as chromium, nickel, copper, zinc, molybdenum, tin, tungsten, or lead. Most compounds in living matter are radically complex; each molecule could contain hundreds or thousands of atoms.

Abundance of elements decreases exponentially with the atomic number Z. Many of the elements shown in the graph are classified into partially overlapping categories: These elements are required as compounds so that livings things can use them.

Both of the first two of these elements have been identified spectroscopically in the atmospheres of stars, where they are produced by ongoing nucleosynthetic processes. The persistence of the term reflects unfamiliarity rather than true rarity. Oxygen and silicon are notably quite common elements.

The rarest elements in the crust shown in yellow are rare due to a combination of factors: The abundance of hydrogen and helium in this cosmic distribution of the elements, proves all the elements were formed by nuclear fusion in the stars, for example the Sun.Comparison of Abundance of Elements.

You are here: There are 92 naturally occurring elements; only 17 of them make up % of the earth’s crust (including oceans and atmosphere). In living things (plants, animals, people) the six most abundant elements are carbon, hydrogen, oxygen, nitrogen, phosphorus and sulfur.

Abundance of the chemical elements. By mass, human cells consist of 65–90% water (H2O), and a significant portion of the remainder is composed of carbon-containing organic molecules. Oxygen therefore contributes a majority of a human body's mass, followed by carbon.

The abundance of hydrogen and helium in this cosmic distribution of the elements, proves all the elements were formed by nuclear fusion in the stars, for example the Sun.

Comparison of Abundance of Elements

Hydrogen is a basic material for which the other elements are gradually. Abundance of the chemical elements by mass fraction or atomic fraction.

Most abundances are expressed by mass fraction.

Abundance of the chemical elements

View Lab Report - The Comparative Abundance Of The Elements Lab from CHEMISTRY Chemistry at Sharyland H S. CHEMISTRY ASSIGNMENT THE COMPARATIVE ABUNDANCE OF the weather There square measure ninety.

The Comparative Abundance Of The Elements - There are 92 naturally occurring elements, only 17 of them make up % of the earth's crust (including oceans and .

Download
The comparative abundance of the elements
Rated 5/5 based on 30 review