2007-08-23 20:24:57 · 5 answers · asked by Adawg 3 in Science & Mathematics ➔ Chemistry
Atom - smallest part of an element that can take part in reactions.
Molecule - a stable arrangement of atoms chemically bonded together that can exist independently.
Element - contains atoms all of one sort.
Compound - two or more different elements chemically combined.
2007-08-23 20:56:39 · answer #1 · answered by Gervald F 7 · 1⤊ 0⤋
Atom --- atom (Greek ἄτομος or átomos meaning "indivisible") is the smallest particle still characterizing a chemical element.
-An atom consists of a dense atomic nucleus of positively-charged protons and electrically-neutral neutrons, surrounded by a much larger electron cloud consisting of negatively-charged electron. An atom is electrically neutral if it has the same number of protons as electrons. The number of protons in an atom defines the chemical element to which it belongs, while the number of neutrons determines the isotope of the element.
Molecule --- a sufficiently stable electrically neutral group of at least two atoms in a definite arrangement held together by strong chemical bonds.
-the smallest identifiable unit into which a pure substance can be divided and still retain the composition and chemical properties of that substance.
The division of a sample of a substance into progressively smaller parts produces no change in either its composition or its chemical properties until parts consisting of single molecules are reached.
Element --- one of those bodies into which other bodies can be decomposed and which itself is not capable of being divided into other. An element is a substance that is made entirely from one type of atom. For example, the element hydrogen is made from atoms containing a single proton and a single electron. If you change the number of protons an atom has, you change the type of element it is.
Compound --- a substance that results from a combination of two or more different chemical elements, in such a way that the atoms of the different elements are held together by chemical bonds that are difficult to break. These bonds form as a result of the sharing or exchange of electrons among the atoms.
2007-08-23 20:56:28 · answer #2 · answered by ♪£yricảl♪ 4 · 2⤊ 1⤋
Good question, I was wondering the same thing myself
2016-08-24 13:21:55 · answer #3 · answered by ? 4 · 0⤊ 0⤋
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2015-11-04 02:03:08 · answer #4 · answered by RAYMARK 1 · 0⤊ 0⤋
no your wrong
2015-02-16 10:51:58 · answer #5 · answered by Kwayera 1 · 0⤊ 0⤋