Parla How many protons, neutrons, and electrons are in 38 Sr? Enter your answers numerically separated by commas. ? Np, N., N= = Submit Request Answer Part B What is the symbol of another isotope of strontium with 51 neutrons? Express your answer as an isotope. ? Part C What is the name of an atom with the same mass number as in Part B and 50 neutrons? Spell out the full name of the element. Submit Request Answer Part D What is the symbol of an isotope with the same mass number as in Part B and 50 neutrons ? Express your answer as an Isotope