These values are similar.
These values are similar.
The approximate mass of an oxygen atom in atomic mass units is 16. Oxygen has an atomic number of 8, which means that its atomic mass is approximately 16 atomic mass units.
Bromine has an approximate atomic mass of 79.904.
The atomic mass of phosphorous-31 is 30,97376163(20).
Atomic Mass (of an isotope) - number of protons (of an isotope) = number of neutrons (of an isotope)
That has an atomic mass of (45 + 56), or 101.
On the periodic table it is the number on the bottom of the element.If you know the amount of neutrons you can add it to the number of protons to find the atomic mass NUMBER, which is a good approximate of the atomic mass.Potassium (isotope 39), 19K(39), has 19 protons and 20 neutrons19 + 20 = 39 atomic mass NUMBER, its atomic mass is 39.10 a.m.u.
This element has 26 neutrons, so its atomic number would be 26. Given an approximate atomic mass of 48 amu, this corresponds to the element iron (Fe).
No, the atomic number relates to the number of protons and electrons. say if the atomic number is 8 and the atomic mass is 17. by looking at the atomic number you can tell there are 8 protons and 8 electrons. but now you want to find the number of neutrons. you see that the atomic mass is 17. so you subtract the atomic number from the atomic mass. which is 17-8= 9. so there are 8protons, 8electrons, and 9 neutrons. hope this helps you.
Mass of isotopes are not integers.
The relative mass of a neutron compared with a proton is one.
You can determine the approximate mass of an atom in atomic mass units by summing the number of protons and neutrons in the nucleus of the atom. The mass of a proton and neutron is approximately 1 atomic mass unit (amu), so the total mass of the atom would be the number of protons + number of neutrons in the nucleus.