Bohr Atomic Theory and Electron Shells Quiz
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Questions and Answers

According to the Bohr atomic theory, how are electrons in an atom arranged?

  • In continuous energy orbits
  • In discrete energy orbits or shells (correct)
  • In a single energy shell
  • In random energy levels

What happens when an electron transitions from an upper orbit to a lower orbit?

  • The electron disappears
  • Energy is released as photon radiation (correct)
  • Nothing happens
  • Energy is absorbed from the surroundings

How are the different energy shells designated according to the quantum theory?

  • By alphabetical letters
  • By Greek letters
  • By Arabic numerals (correct)
  • By Roman numerals

How many orbitals are there in a main shell with principal quantum number n?

<p>$2n^2$ (D)</p> Signup and view all the answers

What do the azimuthal quantum numbers, l, designate?

<p>The electron's angular momentum (C)</p> Signup and view all the answers

Which of the following is a correct statement according to Bohr's atomic theory?

<p>Electrons are arranged in specific energy levels around the nucleus. (A)</p> Signup and view all the answers

What is the primary composition of the nucleus according to Bohr's atomic theory?

<p>Protons and neutrons (C)</p> Signup and view all the answers

What is the order of magnitude for the size of an atom, as per Bohr's atomic theory?

<p>$10^{-8}$ cm (B)</p> Signup and view all the answers

According to Bohr's atomic theory, what balances the electrical charge of the nucleus in an atom?

<p>Number of electrons equals number of protons (C)</p> Signup and view all the answers

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