Atomic structure, bonding
Atomic structure, bonding
Atomic structure, bonding
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2.2 Fundamental Concepts<br />
• <strong>Atomic</strong> Number (Z)<br />
• Number of protons in the nucleus<br />
• Electrically neutral or complete<br />
atom: Z = # electrons<br />
• <strong>Atomic</strong> Mass (A)<br />
• Sum of the masses of protons and<br />
neutrons; atomic mass unit = amu =<br />
1/12 mass of 12 C<br />
• Isotopes<br />
• Atoms of the same element with<br />
different atomic masses due to varying<br />
number of neutrons (e.g. 12 C, 13 C, 14 C
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