Question 1

Question

A)How many electrons does hydrogen have in its valence shell when it is full?(1 point)
Responses

eight
eight

one
one

seven
seven

two
two
Question 2
A)How do valence electrons impact the type of bonds an atom makes?(1 point)
Responses

A large number of valence electrons means the atom will share electrons; a small number of valence electrons leads to transferring from one atom to another.
A large number of valence electrons means the atom will share electrons; a small number of valence electrons leads to transferring from one atom to another.

An atom wants an empty outer shell of valence electrons, so it will either transfer or share electrons depending on what the other atom needs.
An atom wants an empty outer shell of valence electrons, so it will either transfer or share electrons depending on what the other atom needs.

An atom wants a full outer shell of valence electrons, so it will either transfer or share electrons depending on what the other atom needs.
An atom wants a full outer shell of valence electrons, so it will either transfer or share electrons depending on what the other atom needs.

A small number of valence electrons means the atom will share electrons; a large number of valence electrons leads to transferring from one atom to another.
A small number of valence electrons means the atom will share electrons; a large number of valence electrons leads to transferring from one atom to another.
Question 3
A)Use your knowledge of valence electrons and how they affect bonds to figure out how carbon (Group 14) and oxygen (Group 16) would be attached to one another. In carbon dioxide (CO2), how is the compound structured? (Use “–” to represent a single bond and “=” to represent a double bond.)(1 point)
Responses

O=C=O
O=C=O

C=O–O
C=O–O

C–O–O
C–O–O

O=C–O
O=C–O
Question 4
A)Methane’s chemical formula is CH4. Is there a bond between any of the hydrogen atoms? Why or why not?(1 point)
Responses

Yes, there is because there are one too many hydrogen atoms for carbon to handle alone, so one hydrogen must bond with another.
Yes, there is because there are one too many hydrogen atoms for carbon to handle alone, so one hydrogen must bond with another.

No, there is not because it would form H2 instead of methane if hydrogen bonded with itself.
No, there is not because it would form H 2 instead of methane if hydrogen bonded with itself.

Yes, there is because they form a long chain in order to all have stable outer energy shells.
Yes, there is because they form a long chain in order to all have stable outer energy shells.

No, there is not because carbon needs four bonds, so it bonds with each hydrogen atom; hydrogen only forms one bond.
No, there is not because carbon needs four bonds, so it bonds with each hydrogen atom; hydrogen only forms one bond.
Question 5
A)In hydrogen peroxide (H2O2), which option best shows how the atoms are ordered?(1 point)
Responses

H–O–O–H
H–O–O–H

O–H–H–O
O–H–H–O

O–H–O–H

Answer 1

Here are the best responses to your questions:

Question 1
A) How many electrons does hydrogen have in its valence shell when it is full?
Response: one (Hydrogen has one electron in its valence shell, and it needs one more to achieve a full shell, similar to helium.)

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Question 2
A) How do valence electrons impact the type of bonds an atom makes?
Response: An atom wants a full outer shell of valence electrons, so it will either transfer or share electrons depending on what the other atom needs. (Atoms typically form bonds to achieve a full outer shell, following the octet rule for most elements.)

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Question 3
A) Use your knowledge of valence electrons and how they affect bonds to figure out how carbon (Group 14) and oxygen (Group 16) would be attached to one another. In carbon dioxide (CO2), how is the compound structured?
Response: O=C=O (Each oxygen double bonds with the carbon to fulfill their valence electron needs.)

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Question 4
A) Methane’s chemical formula is CH4. Is there a bond between any of the hydrogen atoms? Why or why not?
Response: No, there is not because carbon needs four bonds, so it bonds with each hydrogen atom; hydrogen only forms one bond. (In methane, carbon forms four single bonds with four hydrogen atoms, and hydrogen does not bond with itself.)

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Question 5
A) In hydrogen peroxide (H2O2), which option best shows how the atoms are ordered?
Response: H–O–O–H (This correctly shows the structural arrangement of hydrogen peroxide, where each oxygen atom is bonded to a hydrogen atom and to each other.)