Chemical Bonding and Properties (Warm-Up)

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What is a chemical bond?

Back

A chemical bond is a lasting attraction between atoms, ions, or molecules that enables the formation of chemical compounds.

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What are the two main types of chemical bonds?

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The two main types of chemical bonds are ionic bonds and covalent bonds.

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What is an ionic bond?

Back

An ionic bond is a type of chemical bond that occurs when electrons are transferred from one atom to another, resulting in the formation of charged ions.

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Front

What is a covalent bond?

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A covalent bond is a type of chemical bond that occurs when two atoms share one or more pairs of electrons.

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How many atoms are in the molecule CH₄?

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CH₄ has 5 atoms in total: 1 carbon atom and 4 hydrogen atoms.

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How many atoms are in the molecule CO₂?

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CO₂ has 3 atoms in total: 1 carbon atom and 2 oxygen atoms.

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What determines the number of valence electrons in an element?

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The group number of the element in the periodic table determines the number of valence electrons it has.

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Why do atoms form bonds?

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Atoms form bonds to fill their outermost energy level and become stable.

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Front

What is the electron dot diagram for Nitrogen?

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The electron dot diagram for Nitrogen shows 5 dots representing its 5 valence electrons.

Front

What is the significance of valence electrons?

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Valence electrons are important because they determine how an atom can bond with other atoms.

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