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I think that because chlorine has 17 electrons in all, and ten of them are filled up on the first two shells, then seven of them should be on the third shell, so seven of them are valance electrons.
chlorine atom has 17 electrons when it accepts one more it becomes chloride ion so chloride has total 18 electrons, isoelectronic with Argon.
When the element bonds with another element it accepts electrons (it does not give them away) and becomes negatively charged.
yes
Because sodium has one valance electron that it donates to chlorine because of chlorine's high electronegativity and chlorine has seven valance electrons, so it accepts one into it's valance shell. This is the octet state for both atoms and this allows opposite charged ions to be bonded together. Cation: Na + Anion: Cl - Form: NaCl Sodium chloride.
I think that because chlorine has 17 electrons in all, and ten of them are filled up on the first two shells, then seven of them should be on the third shell, so seven of them are valance electrons.
chlorine atom has 17 electrons when it accepts one more it becomes chloride ion so chloride has total 18 electrons, isoelectronic with Argon.
Chlorine readily accepts another electron because it just needs to gain one more e- to complete its outer shell of valence electrons. Once chlorine's outer shell is filled, the element becomes more stable. Chlorine's whole family of elements (F, Cl, Br, I) all readily accept one more electron.
Compare the electronegativity of calcium to the electronegativity of chlorine. Find the number of electrons each will give up / accept. Balance the two. Calcium easily gives up two electrons. Chlorine easily accepts one electron.
When the element bonds with another element it accepts electrons (it does not give them away) and becomes negatively charged.
Gold, as it's the most electronegative of those four elements.
They are both elements, form molecules, and will bond with many other elements.
Calcium ( Ca ) donates two electrons to this ionic bond and chlorine ( Cl ) accepts one electron to form its octet. So, you need two chlorine atoms for every one of the calcium atoms.
Chloride forms a negative ion because of its number of valence electrons. Chloride wants to have 8 valence electrons. It only has 7. So for Chloride to have a full electron shell it accepts an electron from other elements. Because electrons have a negative charge, the extra electron that Chloride receives gives it a negative charge.
a covalent bond
accepts an electron to become the chloride anion, Cl-
The most common bounds chlorine accepts are with Alcaline metals. They have only one valence electron, which chlorine would gladly steal so that his last orbital becomes full of electrons. This way both become stable, and they would form a very strong ionic compound.