Chemistry Chapter 2 Quiz
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Questions and Answers

What is the mass number of the atom if there are 6 neutrons and 6 protons?

  • 7
  • 5
  • 17
  • 12 (correct)
  • The nucleus of an atom contains protons and electrons.

    False

    What are the particles labeled P, Q, and R in an atom?

    P: Neutrons, Q: Protons, R: Electrons

    The part of the atom labelled S is the ______.

    <p>Nucleus</p> Signup and view all the answers

    Match the following particles with their charges:

    <p>Proton = Positive charge Neutron = No charge Electron = Negative charge</p> Signup and view all the answers

    Which metal is represented by the symbol Na in Period 3?

    <p>Sodium</p> Signup and view all the answers

    Elements in Group 0 are highly reactive due to their need to gain electrons.

    <p>False</p> Signup and view all the answers

    What is the electronic configuration of an atom of nitrogen?

    <p>2.5</p> Signup and view all the answers

    The boiling point of helium is ______ °C.

    <p>-269</p> Signup and view all the answers

    Match the Group 0 elements with their boiling points:

    <p>Helium = -269 °C Neon = -246 °C Argon = -186 °C Krypton = -153 °C</p> Signup and view all the answers

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