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All halogens (group 17) have 7 valence electrons.

Electronic Configuration of Br = 1s22s22p63s23p64s24p5

Number of e- in valence shell (outmost s and p-orbital) = 2 + 5 = 7e-

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How many valence electrons are present in an atom of bromine in the ground state?

5 valence electrons exist in bromine period, at ground state bromine has 3 valence electrons


How many valence electrons does HBr have?

Hydrogen has 1 valence electron. Bromine has 7 valence electrons. When hydrogen and bromine react, the bromine atom 'steals' the hydrogen atom's only electron. The hydrogen atom then has no electrons and the bromine atom has 8 valence electrons. The two atoms are now ions because their number of protons does not equal their number of electrons. The bromine atom is now a bromide anion and the hydrogen atom is now a hydrogen cation (a proton). The two ions remain together, ionicly bonded and together are called hydrogen bromide.


How many core electrons are in a ground state atom of bromine?

A ground state atom of bromine has 28 core electrons. This can be determined by subtracting the number of valence electrons in a neutral bromine atom (7) from the total number of electrons in a bromine atom (35).


How many number of valence electrons in bromine?

Counting the 4th shell orbitals and their electrons, Bromine has two 4s electrons and five 4p electrons, giving it a total of 7 valence electrons.


How many inner electrons does Br have?

Bromine (Br) has 36 inner electrons. This can be calculated by subtracting the number of valence electrons (7) from the total number of electrons in the neutral atom of bromine (usually 43).


How many core electrons does Br have?

Bromine (Br) has 18 core electrons. This can be determined by subtracting the number of valence electrons (7 in the case of bromine) from the total number of electrons in a neutral atom, which is 35 for bromine.


How many electrons occupy p orbitals in a bromine atom?

17. The electronic configuration of bromine is 1s2, 2s2, 2p6, 3s2, 3p6, 4s2, 4p5


How many valence electrons are available for bonding in bromine (Br)?

Bromine has 7 valence electrons available for bonding.


How many electrons are in the atom bromine?

A neutral bromine atom has 35 electrons.


How many valence electrons dose a bromine anion contain?

A bromine anion (Br-) contains 8 valence electrons. Bromine is in group 7A of the periodic table and has 7 valence electrons. When it gains an extra electron to form an anion, it now has a total of 8 valence electrons.


How many valence electrons does a nitrogen atom have then a carbon atom?

nitrogen has 5 valence electrons. carbon has 4 valence electrons.


How many valence electrons does a bromine anion contain?

A bromine anion has 8 valence electrons. This is because bromine, with 7 valence electrons, gains one extra electron when it forms an anion to achieve a full octet and become stable.