There are 4 protons in 9Be. All isotopes and ions of the same elements will have the same number of protons regardless of the difference in the number of neutrons or electrons. So the information about which isotope is (by saying Be-9) is unneeded.
Flourine has 9 protons and this number is independent of the charge on the atom
There are 9 protons and 9 electrons in a fluorine atom The only stable isotope has 10 neutrons
there are 19 protons in a fluorine-19 atom. Ironic huh? There are 9 protons in the fluorine 19 nucleus. There are 10 neutrons. The atomic number of fluorine is 9, which is the number of protons in a nucleus. The isotope number is the total number of protons and neutrons. The number of neutrons is different between fluorine 18 and 19 (9 and 10 respectively). They both have 9 protons.
9 protons and 10 neutrons in F-19 isotope.
Fluorine, F, has the atomic number 9. Atomic number is the number of protons, so fluorine atoms have 9 protons in their nuclei. In a neutral atom, the number of protons and electrons are equal. So a neutral F atom will have 9 electrons.
There are 9 protons in the element fluorine.
The atomic number of fluorine is 9. So there are 9 protons
9 protons and 9 neutrons are present in F-18 atom
9
Beryllium has four protons. Be9 also has five neutrons, for a total mass of 9.
Fluorine has 9 protons.
There are 9 protons in this fluorine atom because the atomic number (9) represents the number of protons in an atom.
9
Each fluorine atom has 9 protons.
Flourine has 9 protons and this number is independent of the charge on the atom
There will be 9 protons in a fluorine atom, but actually, there exists only fluorine-19.
An atom with an atomic number of 9 means it has 9 protons. The atomic mass of 19 indicates the total number of protons and neutrons in the nucleus, so if the atom has 9 protons, the remaining mass comes from neutrons (19-9=10 neutrons).