Periodic Table and Atomic Structure Vocabulary

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Description and Tags

Essential vocabulary terms covering periodic table structure and basic atomic forces.

12 Terms

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Group

A vertical column on the periodic table.

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Period

A horizontal row.

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Valence electrons

Electrons in the outermost occupied shell.

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Nucleus

The center of an atom, containing protons and neutrons.

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Nuclear attraction

How strongly the positive nucleus pulls on electrons.

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Electron-electron repulsion

Electrons repel each other because they have the same negative charge.

7
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Group

A vertical column on the periodic table.

8
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Period

A horizontal row.

9
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Valence electrons

Electrons in the outermost occupied shell.

10
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Nucleus

The center of an atom, containing protons and neutrons.

11
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Nuclear attraction

How strongly the positive nucleus pulls on electrons.

12
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Electron-electron repulsion

Electrons repel each other because they have the same negative charge.