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Which type of bond forms compounds with distinctive shapes rather than forming massive crystals?
Covalent bond. Molecular compounds are formed by covalent bonds. Ionic bonds and metallic bonds form large crystal lattices (Some large crystals are covalent- like diamond)
What following types of compound can form giant structures ionic covalent metal?
Ionic compounds can form giant structures, such as ionic lattices, due to the attraction between positively and negatively charged ions. Similarly, covalent compounds, like diamond or silicon dioxide, can form giant structures through the sharing of electrons between atoms. Metal compounds can also form giant structures, known as metallic lattices, due to the delocalization of electrons among metal atoms.
Why are the melting and boiling points of covalent compounds lower than those of ionic compounds?
Molecular covalent compounds (where there are discrete molecules) have van der waals forces holding the molecules together in the solid and liquid phases. These forces are weak due to the small electrostatic charges involved as these originate in permanent or instantaneous dipoles. Ionic compounds are giant lattices where the ions are held together by electrostatic forces deriving fromthe relatively large charges on ions. It therefore takes more energy to break ionic lattices. NOTE that giant covalent molecules like diamond, silicon carbide also have high melting points. In these much energy is required to break the covalent bonds that hold the giant molecule together.
How are molecular compounds different from an ionic compound?
Molecular compounds consist of covalent bonds formed by sharing electrons between atoms, while ionic compounds involve the transfer of electrons from one atom to another, resulting in the formation of positive and negative ions. Molecular compounds typically have lower melting and boiling points compared to ionic compounds and are often composed of nonmetals. Ionic compounds tend to have higher melting and boiling points, are composed of metals and nonmetals, and form crystalline lattices.
What is the difference between and ionic and covalent bond?
In an ionic bond, electrons are transferred from one atom to another, resulting in the formation of positively and negatively charged ions that are attracted to each other. In a covalent bond, electrons are shared between atoms to achieve a stable electron configuration. Ionic bonds tend to form between a metal and a nonmetal, while covalent bonds typically form between nonmetals.
Do ionic bonds always produce giant ionic lattices?
Yes. The nature of an ionic bond is that it is non-directional and therfore compounds form lattices rather than discrete molecules.
What solid depends on electron sharing to hold it together and does not conduct electricity?
A covalent solid depends on electron sharing to hold it together, forming a network of covalent bonds between atoms. Since electrons are involved in forming strong covalent bonds, these solids do not have free-moving electrons and do not conduct electricity. Diamond and quartz are examples of covalent solids.
What are two ways that crystal and molecular structures affect the properties of ionic and covalent compounds?
The cubic shape of sodium chloride crystals is a result of how the ions form crystals. But Im Still Reading The Rest Notice how each positive ion is surrounded by six negative ions, and each negative ion is surrounded by six positive ions. This regular arrangement gives the sodium chloride crystal its characteristic cubic shape. You can see this distinctive crystal shape when you look at table salt crystals through a magnifying glass.
Why do ionic and polar covalent compounds form chrystals?
Ionic compounds form a crystal lattice. Covalent compounds, polar AND non-polar, giant molecule AND molecular can form crystals. Molecular covalent compunds form regular lattices where the molecules are packed in a regular way.
Why are ionic substances not made up of molecules?
Because molecule was originally defined as a cluster of two or more atoms held together by a covalent bond. So it's not accurate if we say it molecules of ionic compounds. The true sentence is polyatomic ions.
How is convalent compound different from an ionic compound?
Covalent bonds are different from ionic bonds because ionic bonds involve the sharing of electrons. Ionic bonds are also electrically conductive.
What is the solid form of NaCl?
Sodium chloride has a face-centered cubic crystalline structure. Ionic compounds form lattices.
