[DOC] [TLE] Chemistry for Biologists: Some basic chemistry [PAR] Elements are the simplest substances known. ... of the carbon atoms have 6 
protons, 6 electrons and 7 neutrons; a small trace have 6 protons, 6 electrons 
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by Henry Cavendish and is the first element on the periodic table with an atomic... [DOC] [TLE] The Chemical Components of a Cell - Molecular Biology of the Cell ... [PAR] The smallest particle of an element that still retains its distinctive chemical 
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two H atoms,... [DOC] [TLE] Hydrogen, Chemical Element - reaction, water, uses, elements ... [PAR] Overview. Hydrogen is the most abundant element in the universe. ... Hydrogen 
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in the Earth's atmosphere. ... A fusion bomb is also known as a hydrogen bomb. [DOC] [TLE] Atomic theory: atoms, elements, nucleus - Chem1 [PAR] May 13, 2016 ... Their very small size has long prevented atoms from being observable by direct 
... An element is a substance: the simplest form to which any other chemical 
substance can ... Ten of the chemical elements have been known since ancient 
times. ... On Earth, oxygen, silicon, and aluminum are most abundant. [DOC] [TLE] hydrogen facts, information, pictures | Encyclopedia.com articles ... [PAR] Together, these two elements make up 99.9% of all known matter in the entire ... 
in nuclear reactionsand, perhaps in the future, as a source of abundant clean 
energy. ... With its single electron, hydrogen is the simplest element of all. ..... 
Because it has the smallest atom of any element on the periodic table, it can 
bond to... [DOC] [TLE] Science at a Distance [PAR] An atom is the smallest unit of a pure substance or element that can exist and still 
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hydrogen,... [DOC] [TLE] Definition of element - Chemistry Dictionary - Chemicool [PAR] Elements are chemically the simplest substances and hence cannot be broken ... 
of the same element have different numbers of neutrons, they are called isotopes. 
... At 75 percent, hydrogen is also the most abundant element in the universe,... [DOC] [TLE] chemical element | Britannica.com [PAR] Mar 29, 2016 ... Any substance that cannot be decomposed into simpler substances by ordinary 
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Question: Atoms of this abundant element are the smallest & simplest known
Answer: hydrogen