Iodine is element number 53 and and so has 53 protons. There are thus 131-53 = 78 neutrons
they determine the atomic mass of the atom
nass number is the number of neutrons plus protons in the nucleus of an atom
The number of neutrons in the nucleus of an atom is always the difference between the mass number of the atom and the atomic number of the atom. Therefore, in this instance, there are (155 - 63) or 92 neutrons in the atom.
The number protons in an atom is called the atomic number (it is this number that tells us which element the atom is). The number of neutrons in an atom can change, but the term for the amount of neutrons is called an isotope. The number of protons and neutrons added together is called the atomic mass.
20. the mass of an atom is determined by the sum of the number of neutrons and protons the atom has.
The number of neutrons depends on the atom. In general, mass number = atomic number + number of neutrons.
The number of neutrons in an atom can affect the atomic mass of an atom.
The total amount of protons and neutrons in an atom is its mass number.
they determine the atomic mass of the atom
nass number is the number of neutrons plus protons in the nucleus of an atom
Of course, number of neutrons or neutron number !
Neutrons = Mass number - Number of Protons
To the find the mass number of an atom you add the protons and neutrons. Meaning that the mass number of this atom is 12.
The number of neutrons in the nucleus of an atom is always the difference between the mass number of the atom and the atomic number of the atom. Therefore, in this instance, there are (155 - 63) or 92 neutrons in the atom.
an isotope is defined by an atom with the same number of protons, but a different number of neutrons
Yes. Atoms with a different number of neutrons are called isotopes of that atom, but a variation in the number of neutrons does not change what the atom is.
No, neutrons + protons = mass