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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What keeps electrons in orbit around the nucleus?
💡 Hint: Think about the forces involved in keeping opposite charges together.
Question 2
Easy
What is the formula for kinetic energy of an electron?
💡 Hint: Remember that kinetic energy is related to motion.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What force keeps electrons in their orbits around the nucleus?
- Gravitational Force
- Electrostatic Force
- Magnetic Force
💡 Hint: Consider the type of charge the nucleus has.
Question 2
Is the total energy of an electron in a stable orbit positive or negative?
- True (Positive)
- False (Negative)
💡 Hint: Think about what bound means in physical terms.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Calculate the force acting on an electron in the first orbit of a hydrogen atom using known values.
💡 Hint: Recollect the values for Coulomb’s constant and electron charge.
Question 2
Discuss how energy absorption and emission lead to the observable spectral lines in atomic emission.
💡 Hint: Consider the connection between energy differences and light wavelength.
Challenge and get performance evaluation