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Atomic Mass and Ionic & Covalent Bonding

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1) Explain why the atomic mass of an atom is a decimal number and how that value was determined before being placed on the periodic table.

2) How are ionic and covalent bonding similar? How are they different? You should discuss how they bond and what the major differences are in their nomenclature (the way they are named).

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This solution discusses atomic masses, ionic bonding and covalent bonding.

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1) The atomic mass of an element is the average of the atomic masses of the isotopes. Atoms of elements have different numbers of neutrons and are called isotopes. Depending on the % abundance of each isotope, it will contribute a certain atomic mass to one mole of the element. The average of all these atomic masses is recorded as the atomic mass on the periodic table. Hence the number is a decimal due ...

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