Fluorine is a non metal element. Atomic mass of it is 19.
The answer is Fluorine!Argon, one of the noble gases.
The atomic number is the number of protons: 19.number of neutrons = mass number - atomic number = 21.The number of electrons is normally the same as the number of protons: 19
The atomic number is 19 and the mass number of its most abundant isotope K-39 is 39 (19 protons + 20 neutrons) while the mass of that isotope is 38.96371 a.m.u.The relative atomic mass of the element potassium, K, is 39.10 g/mole.
Mass number 19 means a total of 19 protons and neutrons. If it has 10 neutrons, that leaves 9 protons, which is Fluorine.
Fluorine is a gas with a mass number 19.
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.
The mass number of fluorine-19 is 18.998404 amu.
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. Atomic mass number of it is 19.
Answer is in the question itself. 19. Because atomic mass is nearly equal to the mass number of the atom. Mass number is always a round number that is natural number. The proton code for fluorine atom is 9. Mass number is the total number of protons and neutrons. So for mass number 19, the number of neutrons will be 19 - 9 = 10.
Fluorine is a non metal element. Mass number of it is 19.
Fluorine is a non metal element. Atomic mass of it is 19.
16 protons + 19 neutrons = 35 mass number
The atomic number of the potassium is 19. So the number of protons and electrons is 19 in the atom of potassium. The number of neutrons can be calculated as mass number minus atomic number. It comes to be 39 minus 19. That is 20.
The answer is Fluorine!Argon, one of the noble gases.