Math / Discrete

QuestionIdentify the compound with atoms that have an incomplete octet. A) $ICl_5$ B) $CO_2$ C) $BF_3$ D) $Cl_2$ E) $CO$

Studdy Solution

STEP 1

What is this asking? Which molecule has a central atom that doesn't have eight electrons around it? Watch out! Remember, some atoms like Boron are perfectly happy with less than eight electrons!

STEP 2

1. Check Iodine Pentachloride
2. Check Carbon Dioxide
3. Check Boron Trifluoride
4. Check Chlorine Gas
5. Check Carbon Monoxide

STEP 3

Iodine is the central atom.
It has $5$ Chlorine atoms bonded to it, giving it $5 \cdot 2 = 10$ electrons from bonding.
Iodine also has two electrons in a lone pair, so it has $10 + 2 = 12$ electrons around it.
That's more than eight, so it's not this one!

STEP 4

Carbon is the central atom.
Each oxygen forms a double bond with the carbon.
That means there are $2 \cdot 4 = 8$ electrons around the carbon.
Eight is a full octet, so it's not this one!

STEP 5

Boron is the central atom.
It has $3$ Fluorine atoms bonded to it, giving it $3 \cdot 2 = 6$ electrons.
Boron has no lone pairs, so it only has six electrons around it.
Six is less than eight! This is our answer!

STEP 6

Each Chlorine shares two electrons with the other, forming a single bond.
Each Chlorine also has six electrons as lone pairs, so each Chlorine has $6 + 2 = 8$ electrons.
Not this one!

STEP 7

Carbon and Oxygen form a triple bond, sharing six electrons.
Oxygen also has a lone pair, giving it $6 + 2 = 8$ electrons.
Carbon also has a lone pair, giving it $6 + 2 = 8$ electrons.
Both atoms have a full octet, so it's not this one!

STEP 8

The compound with an atom that has an incomplete octet is $BF_3$ .

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QuestionIdentify the compound with atoms that have an incomplete octet. A) $ICl_5$ B) $CO_2$ C) $BF_3$ D) $Cl_2$ E) $CO$

Studdy Solution

STEP 1

What is this asking? Which molecule has a central atom that doesn't have eight electrons around it? Watch out! Remember, some atoms like Boron are perfectly happy with less than eight electrons!

STEP 2

1. Check Iodine Pentachloride
2. Check Carbon Dioxide
3. Check Boron Trifluoride
4. Check Chlorine Gas
5. Check Carbon Monoxide

STEP 3

Iodine is the central atom.
It has $5$ Chlorine atoms bonded to it, giving it $5 \cdot 2 = 10$ electrons from bonding.
Iodine also has two electrons in a lone pair, so it has $10 + 2 = 12$ electrons around it.
That's more than eight, so it's not this one!

STEP 4

Carbon is the central atom.
Each oxygen forms a double bond with the carbon.
That means there are $2 \cdot 4 = 8$ electrons around the carbon.
Eight is a full octet, so it's not this one!

STEP 5

Boron is the central atom.
It has $3$ Fluorine atoms bonded to it, giving it $3 \cdot 2 = 6$ electrons.
Boron has no lone pairs, so it only has six electrons around it.
Six is less than eight! This is our answer!

STEP 6

Each Chlorine shares two electrons with the other, forming a single bond.
Each Chlorine also has six electrons as lone pairs, so each Chlorine has $6 + 2 = 8$ electrons.
Not this one!

STEP 7

Carbon and Oxygen form a triple bond, sharing six electrons.
Oxygen also has a lone pair, giving it $6 + 2 = 8$ electrons.
Carbon also has a lone pair, giving it $6 + 2 = 8$ electrons.
Both atoms have a full octet, so it's not this one!

STEP 8

The compound with an atom that has an incomplete octet is $BF_3$ .

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QuestionIdentify the compound with atoms that have an incomplete octet. A) ICl5ICl_5ICl5​ B) CO2CO_2CO2​ C) BF3BF_3BF3​ D) Cl2Cl_2Cl2​ E) COCOCO

Studdy Solution

STEP 1

What is this asking? Which molecule has a central atom that doesn't have eight electrons around it? Watch out! Remember, some atoms like Boron are perfectly happy with less than eight electrons!

STEP 2

1. Check Iodine Pentachloride2. Check Carbon Dioxide3. Check Boron Trifluoride4. Check Chlorine Gas5. Check Carbon Monoxide

STEP 3

Iodine is the central atom.It has 555 Chlorine atoms bonded to it, giving it 5⋅2=105 \cdot 2 = 105⋅2=10 electrons from bonding.Iodine also has two electrons in a lone pair, so it has 10+2=1210 + 2 = 1210+2=12 electrons around it.That's more than eight, so it's not this one!

STEP 4

Carbon is the central atom.Each oxygen forms a double bond with the carbon.That means there are 2⋅4=82 \cdot 4 = 82⋅4=8 electrons around the carbon.Eight is a full octet, so it's not this one!

STEP 5

Boron is the central atom.It has 333 Fluorine atoms bonded to it, giving it 3⋅2=63 \cdot 2 = 63⋅2=6 electrons.Boron has no lone pairs, so it only has six electrons around it.Six is less than eight! **This is our answer!**

STEP 6

Each Chlorine shares two electrons with the other, forming a single bond.Each Chlorine also has six electrons as lone pairs, so each Chlorine has 6+2=86 + 2 = 86+2=8 electrons.Not this one!

STEP 7

Carbon and Oxygen form a triple bond, sharing six electrons.Oxygen also has a lone pair, giving it 6+2=86 + 2 = 86+2=8 electrons.Carbon also has a lone pair, giving it 6+2=86 + 2 = 86+2=8 electrons.Both atoms have a full octet, so it's not this one!

STEP 8

The compound with an atom that has an incomplete octet is BF3BF_3BF3​.

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QuestionIdentify the compound with atoms that have an incomplete octet. A) $ICl_5$ B) $CO_2$ C) $BF_3$ D) $Cl_2$ E) $CO$

1. Check Iodine Pentachloride
2. Check Carbon Dioxide
3. Check Boron Trifluoride
4. Check Chlorine Gas
5. Check Carbon Monoxide

Iodine is the central atom.
It has $5$ Chlorine atoms bonded to it, giving it $5 \cdot 2 = 10$ electrons from bonding.
Iodine also has two electrons in a lone pair, so it has $10 + 2 = 12$ electrons around it.
That's more than eight, so it's not this one!

Carbon is the central atom.
Each oxygen forms a double bond with the carbon.
That means there are $2 \cdot 4 = 8$ electrons around the carbon.
Eight is a full octet, so it's not this one!

Boron is the central atom.
It has $3$ Fluorine atoms bonded to it, giving it $3 \cdot 2 = 6$ electrons.
Boron has no lone pairs, so it only has six electrons around it.
Six is less than eight! This is our answer!

Each Chlorine shares two electrons with the other, forming a single bond.
Each Chlorine also has six electrons as lone pairs, so each Chlorine has $6 + 2 = 8$ electrons.
Not this one!

Carbon and Oxygen form a triple bond, sharing six electrons.
Oxygen also has a lone pair, giving it $6 + 2 = 8$ electrons.
Carbon also has a lone pair, giving it $6 + 2 = 8$ electrons.
Both atoms have a full octet, so it's not this one!

The compound with an atom that has an incomplete octet is $BF_3$ .