Atomic Number: Definition & Symbol


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question 1 of 3

The atomic number gives the number of _____ in the nucleus of an atom.

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1. Protons are _____ particles found in the nucleus of an atom.

2. Since an equal number of electrons are needed to balance the charge of the protons in the nucleus, how many protons and electrons are found in an atom of nitrogen (atomic number 7)?

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About This Quiz & Worksheet

An atom's atomic number represents what sets it apart from atoms of other elements. In this quiz, you'll need to recall several characteristics of atomic numbers.

Quiz & Worksheet Goals

This atomic number quiz assesses your ability to:

  • Understand how the atomic number pertains to the nucleus
  • Know the composition of the nucleus
  • Define protons
  • Figure out the number of protons and electrons in an atom when given its atomic number
  • Know where to find an atomic number on a periodic table

Skills Practiced

  • Reading comprehension - draw the most relevant information from the lesson on atomic numbers
  • Critical thinking - use this information to consider the contents of an atom when given its atomic number
  • Information recall - remember the knowledge you've learned about atomic numbers on the periodic table
  • Knowledge application - use what you've learned to answer questions about what the atomic number reflects

Additional Learning

More information can be found in the lesson Atomic Number: Definition & Symbol, including the following topics:

  • The definition and components of atoms
  • What the nucleus is and what it contains
  • The periodic table