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Q: Why does chlorine form a -1 ion but sulfur only forms -2 ion?
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What does chlorine contain?

Chlorine is an element; it contains only chlorine atoms. It its elemental form it forms diatomic molecules.


Give the name of compound in which Chlorine forms hydrogen bond?

Chlorine cannot form a hydrogen bond only Nitrogen, Oxygen, and Flourine can


Why is chlorine -1 ion and sulfur -2?

Chlorine needs only one additional electron to form an ion that is isoelectronic with an atom of the noble gas argon, while sulfur needs two additional electrons to form an ion that is isoelectronic with an atom of the noble gas argon. Ions that are isoelectronic with noble gas atoms are particular stable; therefore, their formation is favored.


Does Be only have 4 electrons shared in BeCl2?

No. Beryllium has only two valence electrons and forms ionic bonds with chlorine, not covalent bonds. Beryllium atoms form 2+ ions, and chlorine atoms form 1- ions in order to form the ionic compound beryllium chloride, BeCl2.


What is the gas that comines with metal and form table salt?

Chlorine. Note that this forms table salt only when it combines with the particular metal sodium.


Are bromine mercury chlorine helium sodium and sulfur unreactive gases?

Bromine and Chlorine are gases.Sodium and sulphar are solid.Mercury is a liquid.All are reactive.Helium is the only inactive gas.


Is it true that carbon forms only polar molecules?

Yes with any element with a higher electronegativity. Carbon has an electronegativity of 2.55 on the Pauling scale. Checkout the table in wikipedia in the article "electronegativity", you can see that nitrogen, oxygen , sulfur, and fluorine, chlorine, bromine, iodine all have higher electronegativities.


Does chlorine contain salt?

No, chlorine is an element, consisting only of chlorine atoms. Common table salt contains chlorine in the form of the chloride ion (Cl-)


Do chlorine form alloys?

no, because it is a non-metal and only metals can form alloys


Is sulphur more reactive than phosphorus?

Sulfur is a fairly reactive non metal. It burns in air to form sulfur dioxide, it reacts with most metals to make ionic sulfides, and with halogens to make covalent compounds. It does not react with water or acids, but does react with hot alkalis.


Can a chlorine atom only form one ionic bond?

Yes


Do sodium and chlorine atom form a covalent bond?

No. Sodium can only form ionic bonds.