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Neutral Bromine has three complete rings of electrons. The first ring consists of 2 electrons, the second has 8, the third 18, and the fourth has a maximum capacity of 8 electrons. Bromine only has 7 electrons in it's outer ring, though, so it needs one extra electron to complete it's ring.

So to answer your question, it needs ONE more valence electron.

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12y ago
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1mo ago

Bromine has 7 valence electrons. It needs to gain one electron to have a full octet and achieve stability.

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Q: How many valence electrons does bromine has to lose or gain to have 8 valence electrons?
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Related questions

How many valence electrons must bromine gain or lose to get 8 valence electrons?

Bromine's atomic number is 35, so it has 7 valence electrons. To achieve 8 valence electrons and a full outer shell, bromine needs to gain one electron.


How many number of electrons it must gain or lose to have eight valence electrons for bromine?

4


How much electrons would bromine have to gain or lose to get 8 valence electrons?

Bromine, a halogen, has 7 valence electrons. To achieve a full octet (8 valence electrons), bromine would need to gain one electron to reach stability.


Will potassium lose electrons or gain electrons when reacting with bromine?

Potassium will lose electrons when reacting with bromine. Potassium is a metal and tends to lose electrons to achieve a stable electron configuration, while bromine is a nonmetal that tends to gain electrons to achieve a stable electron configuration.


How many electrons phosphorus must gain or lose to have 8 valence electrons?

Phosphorus wants to gain three electrons to have 8 valence electrons.


How many electrons must phosphorus p gain or lose to have 8 valence electrons?

Phosphorus has 5 valence electrons. To have 8 valence electrons, it must gain 3 electrons to reach stability.


How many valence electrons must calcium lose or gain to have 8 valence electrons?

It loses 2 electrons to obtain the argon configuration of 8 valence electrons.


How many electrons must bromine br gain or lose?

Boron can lose 3 electrons from its valence shell that is 2 in 2s & 1 in 2p sub-shell, wheras it cannot gain electron b'coz of its electropositive nature & it has less electron affinity.


How many valence electrons must sulfur gain or lose to get 8 valence electrons?

Sulfur has 6 valence electrons. To achieve 8 valence electrons, sulfur must gain 2 electrons to fill its outer shell and satisfy the octet rule.


How many valence electrons will barium gain or lose to fill its outer shell?

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What number of electrons must sulfur gain or lose to have 8 valence electrons?

Sulfur must gain two electrons.


Why lose or gain electrons?

Compounds will gain or lose electrons in order to reach a more stable state, ideally a full valence shell.