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Look on the Periodic Table of elements. Barium is in the 2nd column. All elements in the 2nd column have a charge (valence Number) of +2. The have 2 electrons in their outer shell.

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14y ago
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9y ago

The predicted valences of bohrium are: 7, 5, 4, 3.

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9y ago

The predicted valences of bohrium are 7, 5, 4, 3.

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14y ago

The most probable valence is +7.

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15y ago

3 (because it is in group 3)

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13y ago

[He]2s22p1 so 3

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Q: What is the valence number of Barium?
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