How many neutrons are in bromine 90?
| Name | Bromine |
|---|---|
| Number of Protons | 35 |
| Number of Neutrons | 45 |
| Number of Electrons | 35 |
| Melting Point | -7.2° C |
Is bromine 80 stable?
Bromine (35Br) has two stable isotopes, 79Br and 81Br, and 32 known radioisotopes, the most stable of which is 77Br, with a half-life of 57.036 hours.
Is bromine 82 radioactive or stable?
Bromine
| Mass Number | Half-life | Decay Mode |
|---|---|---|
| 81 | STABLE | – |
| 82 | 35.282 hours | Beta-minus Decay |
| 82m | 6.13 minutes | Isomeric Transition |
| Beta-minus Decay |
How many isotopes are in bromine?
Bromine has two naturally occurring isotopes (Br-79 and Br-81) and an atomic mass of 79.904 amu.
What kind of gas is bromine at room temperature?
Bromine is a chemical element with symbol Br and atomic number 35. It is the third-lightest halogen, and is a fuming red-brown liquid at room temperature that evaporates readily to form a similarly coloured gas. Its properties are thus intermediate between those of chlorine and iodine.
What happens to bromine at a pressure of 55 GPa?
At a pressure of 55 GPa (roughly 540,000 times atmospheric pressure) bromine undergoes an insulator-to-metal transition. At 75 GPa it changes to a face-centered orthorhombic structure. At 100 GPa it changes to a body centered orthorhombic monatomic form. Bromine has two stable isotopes, 79 Br and 81 Br.
Which is the most stable isotope of bromine?
Bromine has two stable isotopes, 79 Br and 81 Br. These are its only two natural isotopes, with 79 Br making up 51% of natural bromine and 81 Br making up the remaining 49%. Both have nuclear spin 3/2− and thus may be used for nuclear magnetic resonance, although 81 Br is more favourable.
Who was the first person to discover bromine?
Bromine was discovered independently by two chemists, Carl Jacob Löwig and Antoine Balard, in 1825 and 1826, respectively. Löwig isolated bromine from a mineral water spring from his hometown Bad Kreuznach in 1825. Löwig used a solution of the mineral salt saturated with chlorine and extracted the bromine with diethyl ether.
