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Questions and Answers
What are the building blocks of matter?
What are the building blocks of matter?
What type of chemical bond is formed by the transfer of electrons?
What type of chemical bond is formed by the transfer of electrons?
What is the notation that indicates the types and numbers of atoms in a molecule?
What is the notation that indicates the types and numbers of atoms in a molecule?
What is the temperature at which a substance changes from solid to liquid?
What is the temperature at which a substance changes from solid to liquid?
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What is the ability of a substance to undergo chemical reactions?
What is the ability of a substance to undergo chemical reactions?
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What type of formula shows the arrangement of atoms in a molecule?
What type of formula shows the arrangement of atoms in a molecule?
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Study Notes
Atomic Combinations
Types of Atomic Combinations
- Atoms: The building blocks of matter, consisting of protons, neutrons, and electrons.
- Molecules: Two or more atoms chemically bonded together.
- Compounds: Molecules composed of atoms from different elements.
Chemical Bonding
- Chemical Bond: The attractive force that holds atoms together in a molecule.
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Types of Chemical Bonds:
- Ionic Bond: Formed by the transfer of electrons between atoms.
- Covalent Bond: Formed by the sharing of electrons between atoms.
Molecular Formulas
- Molecular Formula: A notation that indicates the types and numbers of atoms in a molecule.
- Empirical Formula: The simplest whole-number ratio of atoms in a molecule.
- Structural Formula: A notation that shows the arrangement of atoms in a molecule.
Properties of Atomic Combinations
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Physical Properties:
- Melting Point: The temperature at which a substance changes from solid to liquid.
- Boiling Point: The temperature at which a substance changes from liquid to gas.
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Chemical Properties:
- Reactivity: The ability of a substance to undergo chemical reactions.
- Solubility: The ability of a substance to dissolve in a solvent.
Atomic Combinations
- Atoms are the building blocks of matter, consisting of protons, neutrons, and electrons.
- Molecules are formed when two or more atoms are chemically bonded together.
Chemical Bonding
- A chemical bond is the attractive force that holds atoms together in a molecule.
- There are two types of chemical bonds:
- Ionic bonds are formed by the transfer of electrons between atoms.
- Covalent bonds are formed by the sharing of electrons between atoms.
Molecular Formulas
- A molecular formula is a notation that indicates the types and numbers of atoms in a molecule.
- An empirical formula represents the simplest whole-number ratio of atoms in a molecule.
- A structural formula shows the arrangement of atoms in a molecule.
Properties of Atomic Combinations
- Physical properties of atomic combinations include:
- Melting point, which is the temperature at which a substance changes from solid to liquid.
- Boiling point, which is the temperature at which a substance changes from liquid to gas.
- Chemical properties of atomic combinations include:
- Reactivity, which is the ability of a substance to undergo chemical reactions.
- Solubility, which is the ability of a substance to dissolve in a solvent.
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Description
Learn about the building blocks of matter, atomic combinations, and chemical bonding. Understand the types of atomic combinations, chemical bonds, and types of chemical bonds.
