An atom of an element has 25 protons in its nucleus.?
4. An atom of an element has 25 protons in its nucleus.
(a) Based on the average atomic mass, write the symbol for the element’s most abundant isotope.
(b) Determine neutrons are in the isotope you described in 4(b)
(c) Calculate electrons are in an atom of this element.
- Roger the MoleLv 74 weeks ago
(a) The element with 25 protons is Mn. The atomic mass of Mn is 54.938045.
So you would expect the most abundant isotope to be
55 total - 25 protons = 30 neutrons
When the atom is neutral it has 25 electrons.