Practice Quiz

MCAS Chemistry Exam Practice

Category - Chemistry

Start a Study Session Sign up for Question of the Day
Which of the following pieces of evidence best supports Bohr’s idea that electrons occupy specific energy levels within an atom?
  1. Sodium atoms become positive ions when they lose electrons.
  2. Each element emits a unique brightline spectrum when it falls from an excited state to a ground state.
  3. Beryllium atoms bombarded with alpha particles produce beams that are not influenced by magnetic fields.
  4. Each element has physical and chemical properties that are unique to that element and different from those of other elements.
Explanation
Answer: B - Each element emits a unique brightline spectrum when it falls from an excited state to a ground state.
Previous Next
Was this helpful? Upvote!
Login to contribute your own answer or details
Start a Study Session Sign up for Question of the Day

Top questions

Related questions

Most popular on PracticeQuiz