What is the mass number minus the atomic number called?
The number of nutrons
atomic number is the amount of protons, equal to the atomic number, the electrons, minus the mass number atomic number is the amount of protons, equal to the atomic number, the electrons, minus the mass number atomic number is the amount of protons, equal to the atomic number, the electrons, minus the mass number
How do you get the number of protons neutrons and electrons from the atomic mass and the mass number?
An iron atom has an atomic mass of 56 Its atomic number is 26 How many neutrons does the iron atom have?
The number of protons in an atom is equivalent to it's atomic number, in this case, 26. The number of neutons is equivalent to the atomic mass minus the number of protons, in this case 30 (or just the atomic mass minus the atomic number). The number of electrons in neutral atoms is equivalent to the number of protons.
Atomic mass minus atomic number. This is rather simplified but the atomic mass of an element is the total of all the protons, neutrons, and electrons in an atom. Each proton and neutron has an atomic mass of approximately 1 AMU (atomic mass units) while an electron has an atomic mass of about 0.0005 AMU. So, you don't need to worry about the electrons. The atomic number of an element is simply the number of…
If an element has an atomic number of 8 and an atomic mass of 14 then how many neutrons does it have?
The mass number minus the atomic number is the number of neutrons in an atom. The atomic number is both protons and electrons. Boron, atomic number 5, has two naturally occuring isotopes with mass numbers of 10 and 11, 10B, 11B. The number of neutrons in each is 5 and 6 respectively. The percentage occurence is roughly 20%, 80% respectively. This gives rise to the fractional atomic mass.