Most neutral atoms of fluorine have an atomic mass of 19 amu and an atomic number of 9. What are these atoms composed of?
O A. protons, 19 neutrons, and 9 electrons
• B. 9 protons, 10 neutrons, and 10 electrons
• c. 9 protons, 10 neutrons, and 9 electrons
O D. 9 protons, 9 neutrons, and 9 electrons

Select the correct answer. which phrase correctly describes temperature? o a. average rotational kinetic energy of the particles in an object o b. average energy of the particles in an object c. average translational kinetic energy of the particles in an object od. all energy possessed by the particles in an object

Schrodinger and heisenberg developed an alternate theory about atomic nature that contradicted some of bohr's model of the atom. how do changes resulting from new technology and evidence affect the reputation of the atomic theory?

What happened in 2012 and how does it illustrate the importance of understanding the sun and how it works?