10
A fluorine atom has 9 electrons.
The negative sign shows it has I negative charge. This is because it has 9 protons and 10 electrons.
When an object has too many electrons, it carries a negative charge. This is because electrons have a negative charge, so an excess of electrons on an object results in an overall negative charge.
Darmstadtium has 110 electrons.
The f orbital can hold a maximum of 14 electrons.
Electrons charge is a negative
Electrons are always negative. There is no neutral electrons.
Fluorine (F) has 9 core electrons, which are the electrons in the inner electron shells. It has 2 electrons in the first shell and 7 electrons in the second shell, making a total of 9 core electrons.
The ion F⁻ (fluoride ion) has 10 electrons. Fluorine (F) has an atomic number of 9, meaning it normally has 9 electrons. When it gains an extra electron to become F⁻, it has a total of 10 electrons.
It should gain 2 electrons
14
To answer this question and all other questions about valence electron, you should know where the element is on the periodic table. You can see that F is the 7th group. F is fluorine, which has 7 valence electrons. Fluoride is F with a negative charge which means it has one more electron, so Fluoride has 8 valence electrons.