valance electrons because they are on the valance or outer ring of the atom so they can be shared with other atoms. atoms with an incomplete outer ring of valance electrons are more reactive then those with a full ring.
Hope this helped this is what i am studying in science class at the moment, i find it very interesting actually and quite easy to comprehend. GOOD LUCK!
When atoms share electrons, the electrical attraction of an atom for the shared electrons is called the atom's electronegativity. Electronegativity is a measure of the ability of an atom to attract shared electrons towards itself in a chemical bond.
In an ionic bond, electrons are transferred from one atom to another. This results in the formation of positively and negatively charged ions that are attracted to each other due to their opposite charges.
In NCl3, nitrogen shares 3 electrons with each chlorine atom, totaling 3 shared electrons between nitrogen and each chlorine atom for a total of 9 shared electrons in the molecule.
Electronegativity is the tendency of an atom to attract shared electrons in a bond. Atoms with higher electronegativity values attract the shared electrons more strongly, leading to uneven distribution of electrons in a covalent bond.
This creates a polar covalent bond, where the electrons are unequally shared between the atoms due to the higher electronegativity of one atom. The atom with higher electronegativity attracts the shared electrons more towards itself, creating partial charges on the atoms.
Electronegativity
When atoms share electrons, the electrical attraction of an atom for the shared electrons is called the atom's electronegativity. Electronegativity is a measure of the ability of an atom to attract shared electrons towards itself in a chemical bond.
The atom with the greater attraction for shared electrons in the molecule is the more electronegative atom.
In metallic bonding, the valence electrons freely 'jump' from atom to atom, forming kind of an electron sea.
In an ionic bond, electrons are transferred from one atom to another. This results in the formation of positively and negatively charged ions that are attracted to each other due to their opposite charges.
An ionic bond forms when electrons are transferred between atoms.
In NCl3, nitrogen shares 3 electrons with each chlorine atom, totaling 3 shared electrons between nitrogen and each chlorine atom for a total of 9 shared electrons in the molecule.
The pair of electrons is shared to form a covalent bond.
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conductors conduct electricity well because the electrons are easily transfered from atom to atom.
For the CO32- ion, there are a total of 10 shared electrons. Each oxygen atom contributes 2 electrons, and the carbon atom contributes 4 electrons. These shared electrons form covalent bonds in the ion structure.
These particles are the electrons with negative electrical charge.