Explanation:
Moles=mass/molar mass
moles × molar mass = mass
0.206 x 119= mass
Mass= 24. 51grams
<span><span><span> </span><span>The strong forces oppose the electromagnetic force of repulsion between protons. Like ”glue” the strong force keeps the protons together to form the nucleus. </span>· The strong forces and electromagnetic forces both hold the atom together.</span><span> </span></span>
The answer is number 1 - energy is emitted
Energy is released when an atom in an excited state returns to the ground state.