136
87-223
223 - 87 = 136
In beta decay, a neutron in the nucleus transforms into a proton while emitting a beta particle (an electron) and an antineutrino. For the isotope 223/87 Fr (Francium), the beta decay equation can be represented as: [ ^{223}{87}Fr \rightarrow ^{223}{88}Ra + \beta^- + \bar{\nu} ] Here, Fr (Francium) decays into Ra (Radium) with the atomic number increasing by one, and a beta particle (β-) is emitted.
The atomic number of francium is 87. This means that it has 87 each of protons and electrons. The number of neutrons depends on the isotope, but the most common one, Fr-223, has 223 - 87 = 136 neutrons. (The number of neutrons is always the isotope mass number minus the atomic number.)
The most stable francium isotope (Fr-223) has 87 protons and 136 neutrons.
The factors of 223 are: 1, 223 (223 is a prime number).
30% of 223= 30% * 223= 0.3 * 223= 66.9
The factors of 223 are: 1, 223
1 and 223 (223 is a prime number).
The positive integer factors of 223 are: 1, 223
223
NO the .223 is a totaly diffrent round than the .223 WSSM