Valence electrons remaining total valence electrons

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valence electrons remaining: total valence electrons minus #used in bonding 4) Complete octets of terminal atoms (ex. H) 5) Pl l ft l t Place leftover electrons on the central atom 6) if no unassigned electrons remain and the central remain, and the central atom doesn’t have an octet, use multiple bonds 51 S. Ensign, chemical bonding
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Drawing Lewis structures of molecules: CO 2 1) Sum the valence electrons from all atoms 2) Decide on atom connections connect with a (“ single bond (“central atom” is usually written first in formula) 3) Determine the number of Determine the number of valence electrons remaining: total valence electrons minus #used in bonding 4) Complete octets of terminal atoms (ex. H) 5) Pl l ft l t Place leftover electrons on the central atom 6) if no unassigned electrons remain and the central remain, and the central atom doesn’t have an octet, use multiple bonds 52 S. Ensign, chemical bonding
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Drawing Lewis structures of molecules: CO 2 1) Sum the valence electrons from all atoms 2) Decide on atom connections connect with a (“ single bond (“central atom” is usually written first in formula) 3) Determine the number of Determine the number of valence electrons remaining: total valence electrons minus #used in bonding 4) Complete octets of terminal atoms (ex. H) 5) Pl l ft l t Place leftover electrons on the central atom 6) if no unassigned electrons remain and the central remain, and the central atom doesn’t have an octet, use multiple bonds 53 S. Ensign, chemical bonding
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Drawing Lewis structures of molecules: HCN 1) Sum the valence electrons from all atoms 2) Decide on atom connections connect with a (“ single bond (“central atom” is usually written first in formula) 3) Determine the number of Determine the number of valence electrons remaining: total valence electrons minus #used in bonding 4) Complete octets of terminal atoms (ex. H) 5) Pl l ft l t Place leftover electrons on the central atom 6) if no unassigned electrons remain and the central remain, and the central atom doesn’t have an octet, use multiple bonds 54 S. Ensign, chemical bonding
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Drawing Lewis structures of molecules: NH 4 + ion 1) Sum the valence electrons from all atoms 2) Decide on atom connections connect with a (“ single bond (“central atom” is usually written first in formula) 3) Determine the number of Determine the number of valence electrons remaining: total valence electrons minus #used in bonding 4) Complete octets of terminal atoms (ex. H) 5) Pl l ft l t Place leftover electrons on the central atom 6) if no unassigned electrons remain and the central remain, and the central atom doesn’t have an octet, use multiple bonds 55 S. Ensign, chemical bonding
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Drawing Lewis structures of molecules: PO 4 3- ion 1) Sum the valence electrons from all atoms 2) Decide on atom connections connect with a (“ single bond (“central atom” is usually written first in formula) 3) Determine the number of Determine the number of valence electrons remaining: total valence electrons minus #used in bonding 4) Complete octets of terminal atoms (ex. H) 5) Pl l ft l t
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