Fluorine (F), the isotope 19F.
K, or potassium, has a mass number of 19. Fluorine is a non metal element. Mass number of it is 19. No, mass number for potassium is not 19. That is the atomic number.
Fluorine is a non metal element. Atomic mass number of it is 19.
Fluorine is a non metal element. Mass number of it is 19.
Fluorine is a non metal element. Mass number of it is 19.
Fluorine is a non metal element. Mass number of it is 19.
If Element B Has 9 As The Atomic Number And 19 As The Mass Number What is The Answer how many protons does it have?
Fluorine is a non metal element. Atomic mass number of it is 19.
Fluorine is a non metal element. Atomic mass number of it is 19.
Atomic number of Fluorine is 9.Mass number of Fluorine is 19.
Fluorine is a non metal element. Mass number of it is 19.
The fluorine-19 isotope.
Fluorine is a non metal element. Atomic mass of it is 19.