Enter the mass number, the number of protons, and the number of neutrons for 131/55 Cs. Enter your answers as integers separated by commas.
The mass number is 131, the number of protons is 55, and the number of neutrons is 76.
The mass number of an atom is the sum of the number of protons and neutrons in its nucleus.
In the case of 131/55 Cs, the mass number is 131.
Since the atomic number of an element is equal to the number of protons it contains, and the element is cesium (Cs) with atomic number 55, we can deduce that there are 55 protons in the nucleus.
To find the number of neutrons, subtract the number of protons (55) from the mass number (131):
Number of neutrons = Mass number - Number of protons
Number of neutrons = 131 - 55
Number of neutrons = 76
Therefore, for 131/55 Cs:
Mass number = 131
Number of protons = 55
Number of neutrons = 76
In summary: Mass number = 131, Number of protons = 55, Number of neutrons = 76