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* CH4, for the central C : neutral counting: C contributes 4 electrons, each H radical contributes one each: 4+4(1) = 8 valence electrons : ionic counting: C4- contributes 8 electrons, each proton contributes 0 each: 8 + 4(0) = 8 electrons. : Similar for H: : neutral counting: H contributes 1 electron, the C contributes 1 electron (the other 3 electrons of C are for the other 3 hydrogens in the molecule): 1 + 1(1) = 2 valence electrons. : ionic counting: H contributes 0 electrons (H+), C4- contributes 2 electrons (per H), 0 + 1(2) = 2 valence electrons : conclusion: Methane follows the octet-rule for carbon, and the duet rule for hydrogen, and hence is expected to be a stable molecule (as we see from daily life) * H2S, for the central S : neutral counting: S contributes 6 electrons, each hydrogen radical contributes one each: 6+2(1) = 8 valence electrons : ionic counting: S2- contributes 8 electrons, each proton contributes 0: 8+2(0) = 8 valence electrons : conclusion: with an octet electron count (on sulfur), we can anticipate that H2S would be pseudotetrahedral if one considers the two lone pairs. * SCl2, for the central S : neutral counting: S contributes 6 electrons, each chlorine radical contributes one each: 6+2(1) = 8 valence electrons : ionic counting: S2+ contributes 4 electrons, each chloride anion contributes 2: 4+2(2) = 8 valence electrons : conclusion: see discussion for H2S above. Notice that both SCl2 and H2S follow the octet rule - the behavior of these molecules is however quite different. * SF6, for the central S : neutral counting: S contributes 6 electrons, each fluorine radical contributes one each: 6+6(1) = 12 valence electrons : ionic counting: S6+ contributes 0 electrons, each fluoride anion contributes 2: 0+6(2) = 12 valence electrons : conclusion: ionic counting indicates a molecule lacking lone pairs of electrons, therefore its structure will be octahedral, as predicted by VSEPR. One might conclude that this molecule would be highly reactive - but the opposite is true: SF6 is inert, and it is widely used in industry because of this property. * TiCl4, for the central Ti : neutral counting: Ti contributes 4 electrons, each chlorine radical contributes one each: 4+4(1) = 8 valence electrons : ionic counting: Ti4+ contributes 0 electrons, each chloride anion contributes two each: 0+4(2) = 8 valence electrons : conclusion: Having only 8e (vs. 18 possible), we can anticipate that TiCl4 will be a good Lewis acid. Indeed, it reacts (in some cases violently) with water, alcohols, ethers, amines. * Fe(CO)5 : neutral counting: Fe contributes 8 electrons, each CO contributes 2 each: 8 + 2(5) = 18 valence electrons : ionic counting: Fe(0) contributes 8 electrons, each CO contributes 2 each: 8 + 2(5) = 18 valence electrons : conclusions: this is a special case, where ionic counting is the same as neutral counting, all fragments being neutral. Since this is an 18-electron complex, it is expected to be isolable compound. * Ferrocene, (C5H5)2Fe, for the central Fe: : neutral counting: Fe contributes 8 electrons, the 2 cyclopentadienyl-rings contribute 5 each: 8 + 2(5) = 18 electrons : ionic counting: Fe2+ contributes 6 electrons, the two aromatic cyclopentadienyl rings contribute 6 each: 6 + 2(6) = 18 valence electrons on iron. : conclusion: Ferrocene is expected to be an isolable compound.
What else can I help you with?
What elements group is best known to bond by a covalent bond?
Nonmetals are the elements best known to bond by a covalent bond, as they typically share electrons to achieve a full outer shell and form stable molecules. Examples include hydrogen, oxygen, nitrogen, and carbon.
A bond in which atoms share electrons is called a?
The type of bond in which two atoms share electrons is called a covalent bond.
What is a neutral group of atoms held together by a covalent bond?
A neutral group of atoms held together by a covalent bond is called a molecule. In a covalent bond, atoms share electrons to achieve a stable configuration. This sharing of electrons creates a strong bond between the atoms in the molecule.
Where electrons are equally shared the bond is said to be a what kind of bond?
The bond is said to be a covalent bond. In a covalent bond, electrons are shared between atoms, typically in nonmetallic elements, in order to achieve a stable electron configuration.
What kind of chemical bond is formed when atoms share electrons?
When atoms share electrons, they form a chemical bond, or covalent bond.
What type of bond exists between two elements that share electrons?
A covalent bond exists between two elements that share electrons. In a covalent bond, the shared electrons are attracted to the nuclei of both atoms, creating a strong bond between the two atoms.
What elements group is best known to bond by a covalent bond?
Nonmetals are the elements best known to bond by a covalent bond, as they typically share electrons to achieve a full outer shell and form stable molecules. Examples include hydrogen, oxygen, nitrogen, and carbon.
A bond in which atoms share electrons is called a?
The type of bond in which two atoms share electrons is called a covalent bond.
What type of bond form when elements share electrons?
covalent bonds
What type of bond in an equal sharing of electrons?
A covalent bond is formed when two atoms share electrons equally, resulting in a strong bond where the electrons are shared between the two atoms. This type of bond occurs in nonmetallic elements or between two identical atoms.
What is a neutral group of atoms held together by a covalent bond?
A neutral group of atoms held together by a covalent bond is called a molecule. In a covalent bond, atoms share electrons to achieve a stable configuration. This sharing of electrons creates a strong bond between the atoms in the molecule.
Where electrons are equally shared the bond is said to be a what kind of bond?
The bond is said to be a covalent bond. In a covalent bond, electrons are shared between atoms, typically in nonmetallic elements, in order to achieve a stable electron configuration.
What kind of chemical bond is formed when atoms share electrons?
When atoms share electrons, they form a chemical bond, or covalent bond.
When electrons are shared this type of bond is characterized as?
When electrons are shared between atoms, it forms a covalent bond. In a covalent bond, atoms share electrons to achieve a stable electron configuration. This type of bond is common in nonmetallic elements.
What kind of bond is made by two elements sharing electrons?
Covalent bonds
What is type of covalent bond in which one an atom donates both electrons?
single
Which elements can form a triple covalent bond?
Elements like carbon, nitrogen, and oxygen can form triple covalent bonds. These elements have enough valence electrons to share three pairs of electrons, resulting in the formation of a stable triple covalent bond.
