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An element is a substance that cannot be broken down into any other substance. Every element is made up of its own type of atom. This is why the chemical elements are all very different from each other. Everything in the universe contains the atoms of at least one or more elements.
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Examples of pure substances are iron, aluminum, silver and gold.
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Common examples of elements are iron, copper, silver, gold, hydrogen, carbon, nitrogen, and oxygen. At present, 94 are natural elements whereas 24 are synthetic. Thus, a total of 118 elements have been identified so far
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Examples of compounds include table salt or sodium chloride (NaCl, an ionic compound), sucrose (a molecule), nitrogen gas (N2, a covalent molecule), a sample of copper (intermetallic), and water (H2O, a covalent molecule).
Answers & Comments
Answer:
ELEMENTS:
pure substance
found in the periodic table
92 found free in the environment
atom is a smallest part
KAUGNAYAN NILA:
made of atoms
essential for life
found in nature
Compounds:
made up of 2 or more different elements
formed through chemical reaction
molecule is its smallest part.
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