Predict whether energy will ever spontaneously transfer from a cold pot of water to a hot stove.

Achange in the number of neutrons in an atom will change an blank . when the number of protons changes in an atom, a new element will form.

What is the wavelength of a 3*10^12 hz infrared wave a 3*10^20m b 1* 10^4m c 3*10^-3m d 1*10^-4 m

Choose all the answers that apply. fluorine (f) has an atomic number of 9 and an atomic weight of 18.99. fluorine has a. 9 protons b. 10 neutrons c. 18 electrons d. an atomic mass of 19 e. at least one isotope