Use equation
number of moles= sample mass/molar mass
Answer:
The sum of the numbers of protons and neutrons in the nucleus is called the mass number and, expressed in amu, is approximately equal to the mass of the atom. An atom is neutral when it contains equal numbers of electrons and protons.
Explanation:
hope this helps :)
The correct answer for this question is the first one ML/s
4 cameras better quality picture but slower than other phones tbh