» Bromine (Br)


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Frequently Asked Questions about Bromine

What is the atomic number of bromine?
Bromine has an atomic number of 35, meaning each atom contains 35 protons in its nucleus.

What is the atomic mass of bromine?
The standard atomic weight of bromine is 79.904 u (unified atomic mass units).

What category does bromine belong to?
Bromine is classified as a halogen.

What is the state of bromine at room temperature?
Bromine is a liquid at 20 °C (68 °F).

What is the melting point of bromine?
The melting point of bromine is -7.35 °C / 265.8 K.

What is the boiling point of bromine?
The boiling point of bromine is 58.85 °C / 332 K.

What is the density of bromine?
The density of bromine is 3.12 g/cm³ (20°C).

What is the electronegativity of bromine?
Bromine has a Pauling electronegativity of 2.96.

What is the electron configuration of bromine?
The electron configuration of bromine is [Ar] 3d10 4s2 4p5.

What are the common oxidation states of bromine?
Bromine commonly exhibits the following oxidation states: −1, +1, +3, +5.

When was bromine discovered?
Bromine was discovered in 1826 by Antoine Jérôme Balard.

Is bromine radioactive?
Bromine is a stable element with no naturally occurring radioactive isotopes.

What is the biological role of bromine?
Possible trace biological role.

What are the common uses of bromine?
Bromine is used for: Flame retardants; Photography chemicals; Water treatment.


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