how to find atomic mass of an element
Answers
To calculate the atomic mass of a single atom of an element, add up the mass of protons and neutrons. Example: Find the atomic mass of an isotope of carbon that has 7 neutrons. You can see from the periodic table that carbon has an atomic number of 6, which is its number of protons.
Atomic mass of element is calculated as following:---
●Atomic mass of element is mass of element and is calculated by adding total number of protons and neutrons present in the nucleus of atom.
●unitof atomic mass is amu that is atomic mass unit.
●for example atomic maas of oxygen is 16 amu.
Number of protons =8
Number of neutrons =8
So mass of oxygen =8+8=16amu.
●atomic mass of element is defined as average relative mass of an atom of an element as compared to mass of an atom of carbon taken as 12.
●so 1 amu is 1.66×10^-24g.