Answer:
blah blah blah blah blah blah blah blah blah blah blah
How many protons are in an isotope of sodium with a mass number of 25? 11
Neil Bohr contributed towards science in many ways, but his contributions did not include the charge of an electron. Neil Bohr recognized a relationship between the chemical properties of a substance and the number of valence shell electrons. Moreover, he introduced the atomic model in 1913 and provided the liquid-drop model to explain nuclear fusion.
Chemical energy is converted to thermal energy.
