The abundance of a chemical element measures how common the element is, or how much of the element there is. Abundance of the chemical elements - Abundance of elements in the Universe. Hydrogen is the most abundant element in the known Universe; helium is second. However, after this, the rank of abundance does not continue to correspond to the atomic number; oxygen has abundance rank 3, but atomic number 8. All others are orders of magnitude less common. Both helium-3 and helium-4 were produced in th ...

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• Abundance of the chemical elements - Abundance of elements in the Universe
• Abundance of the chemical elements - Abundance of elements in the Solar System
• Abundance of the chemical elements - Abundance of elements in Earth
• Abundance of the chemical elements - Abundance of elements in Earth's crust
• Abundance of the chemical elements - Ocean
• Abundance of the chemical elements - Atmosphere
• Abundance of the chemical elements - Organisms
• Abundance of the chemical elements - Human body

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Scientists believe that the Earth formed from the same cloud of matter that formed the Sun. Abundance of the chemical elements - Abundance of elements in Earth's crust. The graphic below illustrates the relative abundance of the chemical elements in Earth's upper continental crust. Many of the elements shown in the graphic are classified into (partially overlapping) categories: rock-forming elements (major elements in green field and minor elements in light green field); ...

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Abundance of the chemical elements, Abundance of the chemical elements - Abundance of elements in the Universe, Abundance of the chemical elements - Abundance of elements in the Solar System, Abundance of the chemical elements - Abundance of elements in Earth, Abundance of the chemical elements - Abundance of elements in Earth's crust, Abundance of the chemical elements - Ocean, Abundance of the chemical elements - Atmosphere, Abundance of the chemical elements - Organisms, Abundance of the chemical elements - Human body

Read more here: » Abundance of the chemical elements: Encyclopedia II - Abundance of the chemical elements - Abundance of elements in Earth

The Solar System was created from the remnants of previous stellar systems that went supernova, and is hence, relative to the rest of the universe, richer in heavier elements. Population I stars contain significant amounts of elements heavier than helium ("metals", in the terminology of astronomers). These heavy elements were produced by earlier generations of stars and spread by supernova explosions ...

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Abundance of the chemical elements, Abundance of the chemical elements - Abundance of elements in the Universe, Abundance of the chemical elements - Abundance of elements in the Solar System, Abundance of the chemical elements - Abundance of elements in Earth, Abundance of the chemical elements - Abundance of elements in Earth's crust, Abundance of the chemical elements - Ocean, Abundance of the chemical elements - Atmosphere, Abundance of the chemical elements - Organisms, Abundance of the chemical elements - Human body

Read more here: » Abundance of the chemical elements: Encyclopedia II - Abundance of the chemical elements - Abundance of elements in the Solar System

Hydrogen is the most abundant element in the known Universe; helium is second. However, after this, the rank of abundance does not continue to correspond to the atomic number; oxygen has abundance rank 3, but atomic number 8. All others are orders of magnitude less common. Both helium-3 and helium-4 were produced in the Big Bang. Additional helium is produced by the fusion of hydrogen inside stellar cores, via a process called the proton-proton chain. Hydrogen and helium are estimated to make up roughly 80% and 20% of all the m ...

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Abundance of the chemical elements, Abundance of the chemical elements - Abundance of elements in the Universe, Abundance of the chemical elements - Abundance of elements in the Solar System, Abundance of the chemical elements - Abundance of elements in Earth, Abundance of the chemical elements - Abundance of elements in Earth's crust, Abundance of the chemical elements - Ocean, Abundance of the chemical elements - Atmosphere, Abundance of the chemical elements - Organisms, Abundance of the chemical elements - Human body

Read more here: » Abundance of the chemical elements: Encyclopedia II - Abundance of the chemical elements - Abundance of elements in the Universe