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The atomic number of rubidium is 37. That means it has 37 protons and 37 electrons. After we fill in the first 37 orbitals with electrons, we get the configuration of 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s1. Since 5 is the highest numbered shell, rubidium has 1 valence electron.

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13y ago
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Wiki User

14y ago

Rubidium has 37 as an element and 36 as an ion

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Wiki User

15y ago

Rubidium has 37 Electrons as an element and 36 as an ion. The configuration is 2, 8, 18, 8, 1. It has the same number of Protons and 48 Neutrons.

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Wiki User

6y ago

Rubidium only has one valence electron in its fifth ring. That places it in the first column of the Periodic Table, and it is a an alkaline metal.

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Wiki User

11y ago

Rubidium is in Group I of the periodic table, hence it has 1 valence electron.

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Polo

Lvl 7
2y ago

1 valence electron (Apex 2021)

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Wiki User

13y ago

Rubidium has 37 Protons

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Wiki User

14y ago

One valence electron

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Anonymous

Lvl 1
4y ago

1

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Q: How many electrons does Rubidium have?
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