What is the total number of valence electrons in a fluorine atom you n the ground state?
A fluorine atom in the ground state has 7 valence electrons.
Valence electrons are the electrons in the outer most shell. The shell number is the number before p, s, d and f in the electron configuration. So in this particular element (which happens do be Fluorine) there are 2 electrons in the first shell and 7 electrons in the second shell. So the valence electrons are 7 (2s2 2px2 2py2 2pz1)
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.
The chemical properties of an element are largely determined by the number of valence or outer shell electrons it has. In general, elements will react to obtain a stable octet, meaning 8 valence electrons. Neon already has 8 electrons and so is largely chemically inert. Fluorine and Bromine each have 7 valence electrons, giving them somewhat similar chemical properties. Both are highly reactive.
Look at their Atomic Valence Shell Diagrams. When an Atom resides in the first column, like Na, it has 'a valence of +1'. If it is in the 2nd column like Mg, 2 valence electrons. If its in the middle part, you probably don't have to worry about it yet. If its in the column with B (Boron), 3 valence electrons. In the column with Carbon (C) four valence electrons. In the column with P…
Yes. Fluorine is a group seven element, just like chlorine. They are in group seven because each has seven valence electrons, which means each has seven electrons in the outermost layer of the atom. Because of having the same number of electrons in the outermost layer, fluorine and chlorine participate in similar chemical reactions and share similar properties.
What is the total number of electrons found in the valence shell of an alkaline element in the ground state?
If its positive it tells u that it has that number of valence electrons. If negative it tells you that it requires that number of electrons to make the valence electrons filled up/stable. If you know which Ion it is, you know the number of valence electrons of the neutral Atom. It corresponds to the group in the periodic table, the element is in. For example: Mg. It's in group 2, so it has 2…
Valence electrons describe the number of available electrons for bonding. The group number describes outermost electron. The elements in same group has same valence electrons. The number of electrons available for bonding are the valence electrons. In an element, the group number is equal to the number of valence electrons. So the number of electrons available for bonding can be identified by the group number.