The symbol An doesn't exist.
In ClF3, there are two lone pairs of electrons on the central chlorine atom in addition to the three bonding pairs with fluorine atoms. This makes a total of five valence electrons not involved in bond formation.
The NCl3 molecule, like most other stable molecules, exist because they share electrons in such a way as to close out the valence shell. Therefore, although one usually doesn't say so in regards to molecules, NCl3 has 8 valence electrons.
Zinc has two valence electrons.
Aluminum has 3 valence electrons.
There are 3 pairs of valence electrons present on the boron atom in BF3. Boron has 3 valence electrons, and each fluorine atom provides one additional electron, giving a total of 6 valence electrons on boron.
If an atom has five valence electrons, it will have one lone pair of electrons.
The symbol An doesn't exist.
There are 4 valence electrons on the oxygen atom in the water molecule. Oxygen has 6 valence electrons, and in a water molecule, oxygen forms 2 covalent bonds with the hydrogen atoms, sharing 2 of its valence electrons with each hydrogen atom.
There are two non-bonding pairs of electrons in Cl4. Each chlorine atom in Cl4 has 7 valence electrons, forming single covalent bonds with the other chlorine atoms, leaving two lone pairs on each chlorine atom.
In ClF3, there are two lone pairs of electrons on the central chlorine atom in addition to the three bonding pairs with fluorine atoms. This makes a total of five valence electrons not involved in bond formation.
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In the Lewis structure of ethylene glycol, a total of 16 valence electrons need to be shown. There are 6 pairs of electrons that are bonding (forming bonds between O-H, C-O and C-C) and 2 pairs of electrons that are nonbonding (on the oxygen atoms).
six, read your periodic table and look at the electron configurations. the last number is how many electrons are in the valence orbital. the number of electrons in that valence orbital and how many valence electrons there are in that atom. oxygen has a 2-6 configuration, hence six valence electrons. lewis dot diagram has a capital O surrounded by three pairs of dots (six total), chemistry is easy and fun for everyone.Oxygen has 6 valence electrons.
Four pairs of electrons. Neon has a full octet.
5 valence electrons exist in bromine period, at ground state bromine has 3 valence electrons