nine
The number of electrons is always the same as the atomic number. That gives you the number of protons and electrons. The atomic mass has nothing to do with it. What is the atomic number? That is your answer.
The PF6⁻ ion consists of one phosphorus (P) atom and six fluorine (F) atoms. Phosphorus has 5 valence electrons, and each fluorine atom has 7 valence electrons, contributing a total of 42 electrons from the six fluorine atoms. Adding the 5 from phosphorus and accounting for the extra electron due to the negative charge, the total number of valence electrons in PF6⁻ is 48.
In an uncharged atom, the number of electrons is always equal to the atomic number, in this instance, 9.
it has 7 valence electrons, which is the number of electrons on the outer energy level, so it needs 7.
Fluorine's atomic number is 9. Thus, fluorine has 9 protons and 9 electrons. As with every atom, all 9 of fluorine's electrons are found in the electron cloud.
The total number of electrons in a neutral fluorine atom is 9, which is the atomic number of fluorine.
Fluorine has 9 in total. 7 in the outermost shell
Fluorine has the atomic number of 9. This means it has 9 protons in the nuclei of its atoms. So, a neutral fluorine atom would also have 9 electrons.
The number of electrons is always the same as the atomic number. That gives you the number of protons and electrons. The atomic mass has nothing to do with it. What is the atomic number? That is your answer.
No, fluorine has nine electrons total and seven valence electrons.
An atom of fluorine has 9 electrons in total. Electrons are equal to protons when the atom isn't an ion, and the number of protons is also the atomic number of the element, so you just need to know the atomic number to find out the number of electrons or protons.
in a normal F- ion there are 10 electrons total (but 8 in the outer energy level)
In a neutral atom of fluorine, there are 9 electrons. The number of neutrons varies with an isotope's mass number.
it has 9 electrons atomic number= number of protrons and electrons and atomic mass-atomic number=neutrons
There are 9 total electrons in an atom of Fluorine.
A fluorine atom has 2 electron shells. The first shell can hold up to 2 electrons, and the second shell can hold up to 8 electrons, giving a total of 10 electrons for a fluorine atom.
The element with the electron configuration He2s2 2p5 is fluorine. The atomic number of fluorine is 9, which means it has 9 electrons. The electron configuration represents 2 electrons in the 2s orbital and 5 electrons in the 2p orbital, giving a total of 7 valence electrons.