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# Mendeleev's Periodic Table

## A method for organizing elements based on their atomic mass.

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Basic Students matched to this level have a partial mastery of prerequisite knowledge and skills fundamental for proficient work.
At Grade (Proficient) Students matched to this level have demonstrated competency over challenging subject matter, including subject matter knowledge, application of such knowledge to real-world situations, and analytical skills appropriate to subject matter.
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## 멘델레예프의 주기율표

멘델레예프의 주기율표, 원소의 족과 주기

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## Mendeleev's Periodic Table

Mendeleev's periodic table and the groups and periods.

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## Mendeleev's Periodic Table

Mendeleev's periodic table and the groups and periods.

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## Mendeleev's Periodic Table

Mendeleev's periodic table and the groups and periods.

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## Mendeleev's Periodic Table

Mendeleev's periodic table and the groups and periods.

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## Mendeleev's Periodic Table

Mendeleev's periodic table and the groups and periods.

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## Mendeleev's Periodic Table

Mendeleev's periodic table and the groups and periods.

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## Mendeleev's Periodic Table

Mendeleev's periodic table and the groups and periods.

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## Mendeleev's Periodic Table

Mendeleev's periodic table and the groups and periods.

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## Mendeleev's Periodic Table

Mendeleev's periodic table and the groups and periods.

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## Chapter 24 Mendeleev's Periodic Table

Mendeleev's periodic table and the groups and periods.

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