Name: Period:
peech
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Build an Atom
Learning Objectives:
1. Draw models that show atoms or ions.
2. Use information about the number of protons, neutrons, and electrons to
• Identify an element and its position on the periodic table
Draw models of atoms
• Determine if the model is for a atom or an ion.
3. Predict how changing the number protons, neutrons, or electrons will change the element, the
charge, and the mass of an atom or ion.
Directions:
3. Explore the Build an Atom simulation with your partner about 5 minutes). As you explore, talk
about what you find with your partner.
4. Using Build an Atom, talk with your partner as you play with the parts of atoms to find:
A. What parts go in the center of the atom?
B. You can call the center of the atom, the nucleus. Most atoms in our environment have a stable
nucleus.
C. Play around, and write down three examples of atoms that have a stable nucleus and include a
drawing of your nucleus.
re
Number of particles in
your nucleus:
Draw
your nucleus
What element
is it?
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