Chemical bonds
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This document discusses different types of chemical bonds: ionic bonds form when atoms gain or lose valence electrons to become ions with opposite charges that attract. Covalent bonds form when two atoms share valence electrons in single, double or triple bonds. Metallic bonds are characteristic of metals, with mobile valence electrons shared throughout the crystal structure. Ionic compounds are solid, often water-soluble with high melting/boiling points and low thermal conductivity.
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The document provides information about chemical bonds, compounds, and the three main types of bonds - ionic, covalent, and metallic. It discusses how atoms bond through the exchange or sharing of electrons between elements. Examples are provided to demonstrate identifying ionic versus covalent bonds based on whether the elements involved are metals/nonmetals and whether electrons are exchanged or shared. Students are given practice questions to work through.
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Ionic compounds form giant lattice structures when oppositely charged ions bond via electrostatic forces. This ionic bonding results in high melting points and the ability to conduct electricity when molten or dissolved. Covalent bonds involve electron sharing and can form either simple molecules with weak intermolecular forces or giant covalent structures with very high melting points due to numerous strong covalent bonds. Metallic bonding involves delocalized electrons that act as glue between positive metal ions, allowing them to slide past one another.
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1. Atoms bond together through ionic or covalent bonding to form molecules. Ionic bonding involves the transfer of electrons between atoms, while covalent bonding involves the sharing of electrons.
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Ionic compounds form giant lattice structures when oppositely charged ions bond via electrostatic forces. This ionic bonding results in high melting points and the ability to conduct electricity when molten or dissolved. Covalent bonds involve electron sharing and can form either simple molecules with weak intermolecular forces or giant covalent structures with very high melting points due to numerous strong covalent bonds. Metallic bonding involves delocalized electrons that act as glue between positive metal ions, allowing them to slide past one another.
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Chemical bonds hold atoms together in compounds and determine compounds' properties. Compounds have definite compositions and properties unlike their constituent elements. Ionic bonds form when atoms transfer electrons to become ions of opposite charge, binding in crystalline structures. Covalent bonds form when atoms share electron pairs, binding as individual molecules with properties depending on size and shape. Metallic bonds allow electron delocalization in metal crystals. Different bonding structures give compounds distinctive physical and chemical characteristics.
Ions & Isotopes
Ion - an atom or group of atoms that has a positive or negative charge. Ions are formed by gaining or losing electrons, not protons. Cations have a positive charge and are formed by losing electrons. Anions have a negative charge and are formed by gaining electrons. The periodic table shows which elements tend to form which ions based on their group, with groups 1, 2, 6 and 7 typically forming cations or anions.
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Similar to Chemical bonds
Chemical bonding
There are four main types of chemical bonds: ionic bonds, covalent bonds, metallic bonds, and hydrogen bonds. Ionic bonds form through the transfer of electrons from one atom to another, creating oppositely charged ions. Covalent bonds form through the sharing of electron pairs between atoms. Metallic bonds arise from the electrostatic attraction between positively charged metal ions and delocalized electrons. Hydrogen bonds result from the attraction between hydrogen atoms covalently bonded to electronegative atoms like nitrogen or oxygen, and another electronegative atom. Chemical bonds form through these interactions to hold groups of atoms together in molecules, ions, crystals and other stable species.
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There are two types of atomic bonds - ionic bonds and covalent bonds.pdf
There are two types of atomic bonds - ionic bonds and covalent bonds. They differ in their
structure and properties. Covalent bonds consist of pairs of electrons shared by two atoms, and
bind the atoms in a fixed orientation. Relatively high energies are required to break them (50 -
200 kcal/mol). Whether two atoms can form a covalent bond depends upon their
electronegativity i.e. the power of an atom in a molecule to attract electrons to itself. If two
atoms differ considerably in their electronegativity - as sodium and chloride do - then one of the
atoms will lose its electron to the other atom. This results in a positively charged ion (cation) and
negatively charged ion (anion). The bond between these two ions is called an ionic bond.
Covalent BondsIonic Bonds
Polarity:LowHigh
Formation:A covalent bond is formed between two non-metals that have similar
electronegativities. Neither atom is \"strong\" enough to attract electrons from the other. For
stabilization, they share their electrons from outer molecular orbit with othersAn ionic bond is
formed between a metal and a non-metal. Non-metals(-ve ion) are \"stronger\" than the
metal(+ve ion) and can get electrons very easily from the metal. These two opposite ions attract
each other and form the ionic bond.
Shape:Definite shapeNo definite shape
What is it?:Covalent bonding is a form of chemical bonding between two non metallic atoms
which is characterized by the sharing of pairs of electrons between atoms and other covalent
bonds.Ionic bond, also known as electrovalent bond is a type of bond formed from the
electrostatic attraction between oppositely charged ions in a chemical compound. These kinds of
bonds occur mainly between a metallic and a non metallic atom.
Melting point:lowHigh
Examples:Methane (CH4), Hydro Chloric acid (HCl)Sodium chloride (NaCl), Sulphuric Acid
(H2SO4 )
Occurs between:Two non-metalsOne metal and one non-metal
Boiling point:LowHigh
State at room temperature:Liquid or gaseousSolid
Ability to conduct electricity in molten/aqueous state:
Yes
Ability to conduct electricity in solid state:
Solution
There are two types of atomic bonds - ionic bonds and covalent bonds. They differ in their
structure and properties. Covalent bonds consist of pairs of electrons shared by two atoms, and
bind the atoms in a fixed orientation. Relatively high energies are required to break them (50 -
200 kcal/mol). Whether two atoms can form a covalent bond depends upon their
electronegativity i.e. the power of an atom in a molecule to attract electrons to itself. If two
atoms differ considerably in their electronegativity - as sodium and chloride do - then one of the
atoms will lose its electron to the other atom. This results in a positively charged ion (cation) and
negatively charged ion (anion). The bond between these two ions is called an ionic bond.
Covalent BondsIonic Bonds
Polarity:LowHigh
Formation:A covalent bond is formed between two non-metals that have similar
electronegativities. .
Conditions for Formation of Ionic and Covalent Bonds
For Ionic Bond
1.It is generally formed of the metals and non-metals. The metal atom loses one or more electrons present in its valence shell and these electrons accept by the non-metallic atom.
2.One of the species is cation and the other is an anion.By losing electrons, the metal atom changes to (positive ion) cation.Similarly, the non-metal atom gaining the electrons, get change to (negative Ion) anion. The oppositely charged ions attract each other. Therefore, come closer resulting the formation of the ionic bond (Electrovalent Bond).
Subject: Chemical Bonding in physics....
This document discusses different types of chemical bonds:
- Ionic bonds form between metals and nonmetals through the transfer of electrons to create positively and negatively charged ions. Covalent bonds form between nonmetals through the sharing of electron pairs to create molecular compounds. Metallic bonds involve the pooling of electrons between metal atoms. Polar bonds occur when electrons are shared unevenly between atoms. Understanding chemical bonds is important because they join atoms in the materials used in everyday life.
Chemical bond
A chemical bond is a lasting attraction between atoms that enables the formation of chemical compounds or substance . The bond may result from the electrostatic force of attraction between atoms with opposite charges, or through the sharing of electrons as in the covalent bonds........
PRESENTATION ON CHEMICAL BOND.ppsx
This document provides an overview of different types of chemical bonds: ionic bonds, covalent bonds, metallic bonds, and hydrogen bonds. Ionic bonds form between metals and nonmetals when atoms gain or lose electrons to become ions. Covalent bonds form when atoms share electron pairs, including both polar and nonpolar variations. Metallic bonds occur between packed metal atoms where delocalized electrons move freely between nuclei. Hydrogen bonds are dipole-dipole attractions between hydrogen atoms covalently bonded to electronegative atoms and other electronegative atoms. Examples of each bond type are given.
Chemical bonding by Saliha Rais
Chemical bonds are the forces that hold atoms together in molecules and crystals. There are two main types of bonds: ionic and covalent. Ionic bonds involve a complete transfer of electrons between atoms, giving one atom a positive charge and the other a negative charge. Covalent bonds involve sharing of electron pairs between atoms. Covalent bonding can involve single, double or triple bonds with one, two or three shared pairs respectively. Ionic compounds are usually solids with high melting points, while covalent compounds have lower melting points due to weaker intermolecular forces.
chemistry module-3-ppt.pptx
Ionic compounds are formed between a metal and nonmetal where electrons are transferred, creating oppositely charged ions held together by ionic bonds. Covalent molecular compounds are formed between two or more nonmetals where atoms share electrons through covalent bonds to form electrically neutral molecules like table sugar. Both compound types exhibit distinct physical properties depending on their bonding such as ionic compounds having high melting points and being brittle while covalent compounds have low melting points and are soft and flexible.
Chemical bonding
This document discusses the three main types of chemical bonds: ionic, covalent, and metallic. Ionic bonds form between metals and nonmetals when the metal transfers electrons to the nonmetal. Covalent bonds form when atoms share electrons in either single, double or triple bonds. Metallic bonds form when metal atoms contribute electrons to form a "sea of electrons" that are shared between all the atoms.
An ionic bond is a type of chemical bond formed t.pdf
An ionic bond is a type of chemical bond formed through an electrostatic attraction
between two oppositely charged ions. Ionic bonds are formed between a cation, which is usually
a metal, and an anion, which is usually a nonmetal. Pure ionic bonding cannot exist: all ionic
compounds have some degree of covalent bonding. Thus, an ionic bond is considered a bond
where the ionic character is greater than the covalent character. The larger the difference in
electronegativity between the two atoms involved in the bond, the more ionic (polar) the bond is.
Bonds with partially ionic and partially covalent character are called polar covalent bonds. Ionic
bonding is a form of noncovalent bonding.
Solution
An ionic bond is a type of chemical bond formed through an electrostatic attraction
between two oppositely charged ions. Ionic bonds are formed between a cation, which is usually
a metal, and an anion, which is usually a nonmetal. Pure ionic bonding cannot exist: all ionic
compounds have some degree of covalent bonding. Thus, an ionic bond is considered a bond
where the ionic character is greater than the covalent character. The larger the difference in
electronegativity between the two atoms involved in the bond, the more ionic (polar) the bond is.
Bonds with partially ionic and partially covalent character are called polar covalent bonds. Ionic
bonding is a form of noncovalent bonding..
Chemical bonding
This document discusses different types of chemical bonds: ionic bonds form when electrons are transferred between atoms, while covalent bonds form when electrons are shared between atoms. Ionic bonds occur between oppositely charged ions and result in crystalline solids with high melting points that conduct electricity when melted. Covalent bonds share electron pairs to achieve stability, and can be nonpolar or polar depending on electron distribution. Compounds formed by covalent bonding exist as gases, liquids or solids with low melting points and poor conductivity. Coordinate covalent bonds involve electron sharing where both electrons come from the same atom. Chemical bonding occurs for atoms to achieve stable electron configurations.
Chem 4
This document summarizes different types of chemical bonds:
Ionic bonds form through electrostatic attraction between oppositely charged ions. Ionic compounds conduct electricity and have high boiling points. Covalent bonds share pairs of electrons between atoms. Metallic bonds constitute electrostatic forces between delocalized electrons in a "sea" of positive metal ions, giving metals high melting points. Alloys are mixtures of metals with constituents measured by mass that can be substitutional or interstitial in atomic arrangement.
Lecture on atomic structure.pptx
1. The document discusses various topics related to atomic structure including classical theories of atomic structure, discovery of the proton and nucleus, electron shells, and electron dot structures.
2. It also discusses different types of chemical bonds including ionic bonds formed by electron transfer, covalent bonds formed by electron sharing, hydrogen bonds, and metallic bonds.
3. Additional topics covered include electromagnetic radiations, radioactivity, nuclear decay processes, medical and other applications of radioisotopes, and uses of radiation in agriculture and food preservation.
Types-of-Chemical-Bonding.pdf
Chemical bonding occurs through the attraction between positively charged protons and negatively charged electrons, forming stable compounds. There are three main types of chemical bonds: covalent bonds form when atoms share electron pairs to attain stable electron configurations, ionic bonds form when electrons are transferred between metals and nonmetals creating positively and negatively charged ions that are attracted, and metallic bonds form when metal atoms share their outer electrons in a "sea of electrons" allowing for conductivity and malleability. Chemical bonds are crucial as they allow for the formation of all substances including living things, materials, and objects through lowering energy and achieving stability.
Chemical bonds
A chemical bond forms when atoms combine together. There are three main types of bonds: ionic bonds, covalent bonds, and metallic bonds. Ionic bonds form when a cation and anion combine through electrostatic attraction. Covalent bonds form when atoms share one or more pairs of electrons to fill their outer electron shells. Metallic bonds form a sea of electrons that positively charged metal ions are dissolved within.
Chemical bonding (Ionic bonding)
1) Ionic bonds form when electrons are transferred from one atom to another, giving the atoms opposite charges and forming ions.
2) The atom that loses electrons becomes a positively charged cation, while the atom that gains electrons becomes a negatively charged anion.
3) Ionic bond formation requires one atom to have a low ionization potential and the other a high electron affinity, so there is an overall decrease in energy when electrons are transferred.
Chemical Bonds
This document discusses three main types of chemical bonds: ionic bonds, which form through electrostatic attraction between oppositely charged ions; covalent bonds, where atoms share pairs of electrons; and metallic bonds, which involve delocalized electrons in a "sea of electrons" that allows metals to conduct electricity. Ionic bonds are strongest when the lattice energy is most negative. Covalent bonds can be sigma, pi, simple, double, or triple depending on how electron pairs are shared between atoms.
Chemical Bonds
This document discusses different types of chemical bonds including ionic bonding, covalent bonding, and metallic bonding. Ionic bonding involves the electrostatic attraction between oppositely charged ions when atoms gain or lose electrons. Covalent bonding occurs when atoms share pairs of electrons to gain stability. Metallic bonding results from the attraction between positively charged atomic nuclei and delocalized electrons in metals that act as the binding medium. The importance of chemical bonding is that it allows atoms to join together to form molecules and structures with unique physical and chemical properties essential for life.
CHEMICAL-BONDING.pptx
The document discusses different types of chemical bonds including intramolecular and intermolecular forces. It defines ionic bonds as occurring between metal and non-metal atoms through the transfer of electrons, and covalent bonds as occurring between non-metal atoms through the sharing of electrons. The document also discusses metallic bonding, the octet rule, and provides examples of different ionic compounds.
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Chemical bonds
- 1. Tatyanna Lollies Pablo Rivera
- 2. Chemical bonds A chemical bond is an attraction between atoms that allows the formation of chemical substances that contain two or more atoms.
- 3. Types of chemical bonds : 1. Ionic bonds 2. covalent bonds 3. Metallic bonds
- 4. Ionic bonds Ionic bonds: a chemical bond that occur when an atoms gains a valence electrons from another atom; forming an Anion, (negative ion) and a Cat ion (positive ion). They attracted each other forming an Ionic bond.
- 5. Covalent bond: Covalent bonds: are formed when to atom share valence electrons. There are 3 types of covalent bonds Single, Double and Triple. Single: covalent bond formed by the mutual sharing of one electron pair between two atoms Double: bond formed between 2 atoms sharing 2 electron pairs Triple: covalent bond formed by the
- 6. Metallic Bonds chemical bond characteristic of metals, in which mobile valence electrons are shared among atoms in a usually stable metals “in which the valence electrons are free to move through the crystal” http://www.thefreedictionary.com
- 7. physical properties of Ionic compounds: Physical Properties: Solid Electrical conductivity: Solid: No Liquid: Yes Aqueous: Yes (if soluble) Boiling point and Melting Point: High Solubility in water: Often high Thermal conductivity: Low
- 8. Sources http://chemistry.about.com/od/chemicalbonding/ a/chemicalbonds.htm http://www.beyondbooks.com/psc92/3.asp http://www.citycollegiate.com/bondIXd.htm