Chemistry Lesson: Electron DOT Notation Quiz
Welcome to the Electron Dot Notation Quiz! This interactive quiz is designed to test your understanding of electron dot notation, also known as Lewis structures. Whether you're a student preparing for exams or a chemistry enthusiast eager to reinforce your knowledge, this quiz will challenge your grasp of valence electrons, bonding, and molecular structures.
You'll encounter a wide range of questions covering the basics of determining the number of valence electrons and understanding the bonding patterns in different molecules and ions. Detailed explanations and instant feedback after each question provide valuable learning opportunities to correct misconceptions and deepen your understanding. Read more
By practicing with this quiz, you'll enhance your ability to represent the electron configurations of atoms and molecules effectively. Take the Electron Dot Notation Quiz today and see how well you can apply these crucial concepts in chemistry! Challenge yourself and improve your skills now!
Electron Dot Notation Questions and Answers
- 1.
How many valence electrons does He have?
- A.
2
- B.
3
- C.
4
- D.
5
Correct Answer
A. 2Explanation
Helium (HeHe) has 2 valence electrons. These two electrons fill its only energy level (1s orbital), giving helium a stable and complete outer shell. Therefore, helium is chemically inert and considered a noble gas.Rate this question:
-
- 2.
How many valence electrons does B have?
- A.
3
- B.
4
- C.
5
- D.
6
Correct Answer
A. 3Explanation
Boron (B), with an atomic number of 5, has 3 valence electrons. Its electron configuration is 1s2 2s2 2p1. The 3 valence electrons are found in the second energy level (2s and 2p orbitals).Rate this question:
-
- 3.
How many valence electrons does F have?
- A.
4
- B.
5
- C.
6
- D.
7
Correct Answer
D. 7Explanation
Fluorine (F), with an atomic number of 9, has 7 valence electrons. Its electron configuration is 1s22s22p5. The 7 valence electrons are located in the second energy level (2s and 2p orbitals).Rate this question:
-
- 4.
How many valence electrons does Ne have?
- A.
4
- B.
6
- C.
8
- D.
10
Correct Answer
C. 8Explanation
Neon (Ne), with an atomic number of 10, has 8 valence electrons. Its electron configuration is 1s22s22p6. The 8 valence electrons fill the second energy level (2s and 2p orbitals), giving neon a stable, complete outer shell.Rate this question:
-
- 5.
How many valence electrons does Mg have?
- A.
12
- B.
2
- C.
3
- D.
5
Correct Answer
B. 2Explanation
Magnesium (Mg), with an atomic number of 12, has 2 valence electrons. Its electron configuration is 1s22s22p63s2. The 2 valence electrons are located in the 3s orbital.Rate this question:
-
- 6.
How many valence electrons does Al have?
- A.
2
- B.
13
- C.
3
- D.
8
Correct Answer
C. 3Explanation
Aluminum (Al), with an atomic number of 13, has 3 valence electrons. Its electron configuration is 1s22s22p63s23p1. The 3 valence electrons are located in the 3s and 3p orbitals.Rate this question:
-
- 7.
How many valence electrons does P have?
- A.
4
- B.
5
- C.
6
- D.
15
Correct Answer
B. 5Explanation
Phosphorus (P), an element in Group 15 of the periodic table, has five valence electrons. With an atomic number of 15, its electron configuration is 1s22s22p63s23p3, meaning the outermost third shell contains five electrons, making them its valence electrons.Rate this question:
-
- 8.
How many valence electrons does Ca have?
- A.
8
- B.
7
- C.
3
- D.
2
Correct Answer
D. 2Explanation
Calcium (Ca), an element in Group 2 of the periodic table, has two valence electrons. With an atomic number of 20, its electron configuration is 1s22s22p63s23p64s2, meaning the outermost fourth shell contains two electrons, making them its valence electrons.Rate this question:
-
- 9.
How many valence electrons does Cl have?
- A.
4
- B.
2
- C.
7
- D.
8
Correct Answer
C. 7Explanation
Chlorine (Cl), an element in Group 17 of the periodic table, has seven valence electrons. With an atomic number of 17, its electron configuration is 1s22s22p63s23p5, meaning the outermost third shell contains seven electrons, making them its valence electrons.Rate this question:
-
- 10.
How many valence electrons does Fe have?
- A.
6
- B.
8
- C.
9
- D.
4
Correct Answer
B. 8Explanation
Iron (Fe), an element in Group 8 of the periodic table, has eight valence electrons. With an atomic number of 26, its electron configuration is 1s22s22p63s23p63d64s2. The valence electrons include the two in the 4s subshell and the six in the 3d subshell, making a total of eight valence electrons.Rate this question:
-
Quiz Review Timeline +
Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.
-
Current Version
-
May 14, 2024Quiz Edited by
ProProfs Editorial Team
Expert Reviewed by
Zohra Sattar Waxali -
Jul 30, 2013Quiz Created by
Corrys