Your Name:
Date:
Class:

Atomic Structure
Formative Assessment

Instructions

Answer the following questions as review for your upcoming quiz on atomic structure.


  1. Fill in the following chart about the isotopes of neon (Ne). Assume that the atoms have a net charge of zero, that is, that they are neutral.
Name Number of Protons Number of Neutrons Number of Electrons Mass Number Isotope Symbol
                                             10      
        21  
Neon-22          
  1. What is an isotope?
  2. Define the terms cation and anion.
  3. Two questions:
    1. What has to change for a given atom for it to become a cation? Why?
    2. What has to change for a given atom for it to become a anion? Why?
  4. Two questions:
    1. How do you calculate the number of neutrons in an isotope given the name of the element and the mass number?
    2. How do you calculate the charge based on the number of protons and electrons in an atom?
  5. Find the charge of an ion with the following numbers of protons and electrons. Also, identify each element and whether it is a cation or anion:
    No. of Protons No. of Electrons Charge Element Symbol with Charge Cation or Anion?
    17 18   Cl anion
    5 2      
    9 10      
    16 18      
    14 10      
    30 28      

  6. Bonus: How do you calculate the number of electrons give the number of protons and the charge?


Atomic Structure
Homework: Atomic Structure 1
Last updated: Nov 18, 2020 Home
Copyright and Terms of Use
Today is