Small, Smaller, Smallest Misconceptions about the ...
Intel? Teach Program Designing Effective Projects
Small, Smaller, Smallest Misconceptions about the Structure of Atoms
The following misconceptions can be barriers to students' understanding of atomic structure. You might want to add misconceptions as you encounter them in your students' work and discussions. Frequent assessment, especially listening to students as they discuss their ideas with peers, can help you learn which of these ideas, if any, your students believe. Then, you can plan instruction to correct their understanding.
Only one model of the atom is correct. The electrons in an atom orbit its nucleus like planets in our solar system
orbit the sun. Electron clouds are pictures of electrons in their orbits. The electron cloud is like a rain cloud, with electrons inside of it like drops of
water. An electron cloud has electrons in it, but the cloud itself is made of some
other material. Hydrogen is a typical atom. Electrons are larger than protons. Electrons and protons are the only fundamental particles. The current model of the atom is the right model. Atoms can disappear after time. Atoms are microscopic versions of elements--hard or soft, liquid or gas, and
so forth. Atoms can be seen with a microscope. Atoms move, so they are alive. An electron shell is hard, like an eggshell. Atoms "own" the electrons in their orbits.
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