
Covalent and Ionic Bonding
Flashcard
•
Science
•
8th Grade
•
Practice Problem
•
Hard
Patricia Neal
FREE Resource
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50 questions
Show all answers
1.
FLASHCARD QUESTION
Front
How many valence electrons does nitrogen have?
Back
5
Answer explanation
Nitrogen has 5 valence electrons, which are found in its outer shell. This is determined by its position in group 15 of the periodic table, where elements typically have 5 valence electrons.
2.
FLASHCARD QUESTION
Front
What can be generalized about covalent bonds?
Back
Electrons will be shared.
Answer explanation
Covalent bonds involve the sharing of electrons between atoms, allowing them to achieve stability. This distinguishes them from ionic bonds, where electrons are transferred. Therefore, the correct choice is that electrons will be shared.
3.
FLASHCARD QUESTION
Front
What is it called if there are three-pairs of electrons being shared?
Back
Triple bond
Answer explanation
When three pairs of electrons are shared between atoms, it forms a triple bond. This type of bond is stronger than a single or double bond, making 'Triple bond' the correct answer. Other options do not relate to electron sharing.
4.
FLASHCARD QUESTION
Front
Correct Lewis dot structure for fluorine (F2)? Options: A, B, C, D
Back
B
Answer explanation
The correct Lewis dot structure for fluorine (F2) is choice B, which shows two fluorine atoms sharing a pair of electrons. Each fluorine atom has three lone pairs and one bond, representing the diatomic nature of F2.
5.
FLASHCARD QUESTION
Front
How many electrons should Carbon have around its Lewis dot structure?
Back
4
Answer explanation
Carbon has 4 valence electrons, which are represented in its Lewis dot structure. This allows it to form four covalent bonds with other atoms, making 4 the correct answer.
6.
FLASHCARD QUESTION
Front
What two types of atoms make a covalent bond?
Back
2 Nonmetals
Answer explanation
Covalent bonds form when two nonmetals share electrons. This sharing allows both atoms to achieve a full outer shell, which is a stable configuration. Therefore, the correct answer is 2 Nonmetals.
7.
FLASHCARD QUESTION
Front
How many electrons are shared in a double bond?
Back
4
Answer explanation
In a double bond, two pairs of electrons are shared between two atoms. This means a total of 4 electrons are involved in the bond, making the correct answer 4.
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