'12 atomic mass units' diaporamas de présentation

Atomic Theory & Periodic Trends

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Elements & Atoms with Mr. Khatter

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Atomic Number

4.3. Atomic Number. Atomic Number What makes one element different from another?. 4.3. Atomic Number. Elements are different because they contain different numbers of protons . The atomic number of an element is the number of protons in the nucleus of an atom of that element. 4.3.

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Chemical Formulas and Composition Stoichiometry

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Chapter 3

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ATOMS

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Atomic Masses

Atomic Masses. Using proportions in which elements combine, scientists determined relative atomic masses. Atomic Masses. Picked the element carbon to be standard 12 C is assigned a mass of exactly 12 atomic mass units. Atomic Masses.

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Objectives: After finishing this unit, you should be able to:

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