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Being a metal, lithium does not form diatomic molecules. The lithium atoms are bound one to another by the "delocalized electron cloud" that exists to form the metallic bond. In a way, you could imagine that a chunk of metal behaves as one huge molecule where all of the atoms share electrons.
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Lithium fluoride is an ionic compound (or a salt) which is not a molecule!
Molecules are held together by 'covalent bonds' where two atoms share some of their electrons.
Salts are held together by 'ionic bonds' where one atom donates an electron to another atom.
In order to determine which type of bond will form between two atoms, one must look at the difference in electronegativity between the two. Electronegativity is a measure of how tightly an atom 'holds onto its valence electrons). if the electronegativity difference is less than 1.7, then a covalent bond will form. If the difference is greater than 1.7, then an ionic bond will form.
In the case of lithium fluoride, the electronegativity difference between lithium (electronegativity = 1.0) and fluorine (electronegativity = 4.0) is 3.0, therefore lithium fluoride of an ionic compound, not a molecule!
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What is iodines structure?
Iodine's molecular structure consists of diatomic molecules, with two iodine atoms covalently bonded to each other (I2). Each iodine atom has seven valence electrons and can form a single covalent bond with the other iodine atom, resulting in a stable molecule.
Which of these elements does not exist as a diatomic molecule F Ne I H?
Iodine (I) does not exist as a diatomic molecule under normal conditions. While F (fluorine), Ne (neon), and H (hydrogen) exist naturally as diatomic molecules (F2, Ne2, H2), iodine typically exists as a monatomic molecule, I2.
Is iodine diatomic or monatomic?
Iodine is diatomic, meaning it exists as I2 in its elemental form, with two iodine atoms bonded together.
Which of these elements is not diatomic potassium chlorine iodine or hydrogen?
Potassium is not a diatomic element. Diatomic elements are those that naturally exist as molecules with two atoms bonded together, such as chlorine (Cl2), iodine (I2), and hydrogen (H2). Potassium (K) does not naturally form diatomic molecules.
What is the shape and bond angles for iodine?
Iodine exists as a diatomic molecule, I2, with a linear shape and a bond angle of 180 degrees.
