Take The Covalent Bonding Practice Quiz!
What do you know about covalent bonds? Covalent bonds are essential ways of bonding in organic chemistry, and the creation of covalent bonds is the result of atoms sharing some electrons. Examples of common covalent bonds include peptide and disulfide bonds between amino acids. There are two kinds of covalent bonds: non-polar and polar, and these are relatively strong bonds. This quiz will demonstrate your knowledge of covalent bonding.
- 1.
Why do nonmetals covalently bond?
- A.
They want to create new chemical compounds.
- B.
They want full electron shells.
- C.
Because it's nature.
Correct Answer
B. They want full electron shells.Explanation
Nonmetals covalently bond because they want to achieve full electron shells. Covalent bonding involves the sharing of electrons between atoms, allowing each atom to fill its outermost electron shell and attain a stable electron configuration. Nonmetals typically have higher electronegativity and tend to gain or share electrons to achieve a stable configuration with a full outer shell, usually consisting of eight electrons. This sharing of electrons allows nonmetals to form new chemical compounds and achieve greater stability.Rate this question:
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- 2.
Covalent bonding the transferring of outer electrons between nonmetals.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
False. It is the SHARING of outer electrons between nonmetals.Rate this question:
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- 3.
Nitrogen has an electron configuration of 2,8,5. Chlorine has an electron configuration of 2,8,7. How many electrons do both elements need to get full outer shell?
- A.
Nitrogen needs 6, Chlorine needs 3
- B.
Nitrogen needs 3, Chlorine needs 2
- C.
Nitrogen needs 3, Chlorine needs 1
Correct Answer
C. Nitrogen needs 3, Chlorine needs 1Explanation
A full outer shell has 8 electrons.
Nitrogen has 5 out of 8, Chlorine has 7 out of 8.
Nitrogen needs 3, Chlorine needs 1.Rate this question:
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- 4.
Nitrogen and Chlorine covalently bond. What is the chemical formula?
- A.
NCl3
- B.
N3Cl
- C.
NCl
Correct Answer
A. NCl3Explanation
Since one atom of Nitrogen needs 3 electrons and one of Chlorine only needs 1....
Simply bring another two atoms of Chlorine in.
Nitrogen will get 3 electrons, 1 each from the three atoms of chlorine
And the 3 atoms of chlorine will get 1 electron each from Nitrogen.
So, Nitrogen TriChloride's formula is NCl3.Rate this question:
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- 5.
What is an example of a diatomic molecule?
- A.
Sulphur and Oxygen bond to create SO2.
- B.
Nitrogen and Nitrogen bond to create N3.
- C.
Oxygen and Oxygen bond to create O2.
Correct Answer
C. Oxygen and Oxygen bond to create O2.Explanation
Diatomic molecules are when TWO ATOMS of an element bond. O2 is a diatomic molecule because there are two atoms of oxygen.
Two atoms of Nitrogen cannot create N3 - it is not a diatomic molecule. Three atoms of Nitrogen can create N3, however - this is called a triatomic molecule.Rate this question:
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- 6.
Neon has an electron configuration of 2,8. Carbon has an electron configuration of 2,4. What will the chemical formula be?
- A.
C2Ne
- B.
There will be no chemical formula.
- C.
Ne2C2
Correct Answer
B. There will be no chemical formula.Explanation
There will be no chemical formula.
Why? Neon already has a full electron shell. It's not going to want to bond with Carbon.
No covalent bonding here!Rate this question:
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- 7.
Covalent bonds do not conduct electricity.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
Covalent compounds do NOT conduct electricity. All of the electrons in the outer shells are fixed between specific atoms, so they are locked into place and therefore cannot pass charges.Rate this question:
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Current Version
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Mar 22, 2023Quiz Edited by
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Nov 06, 2011Quiz Created by
Superoxideion01
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