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Exploring Atomic Orbitals across the Periodic Table
Putting it all together
Reopen the periodic table (click here), if you closed it.
In this activity you will confirm your knowledge of orbitals and the general patterns in the periodic table. You will also make some predictions about how two different atoms might interact based on information about size of atoms displayed in the table.
Task 8. Review: Stating General Patterns
Revisit the table by viewing atoms in the second and third period.
of specific atoms to give solid data for your report.
Task 9. Interactivity of Atoms
Negatively charged electrons are attracted to the positively charged nucleus.
The attractive force diminishes with distance.
Consider what migh happen when a small atom like fluorine (Fl) comes close to
a larger atom like potassium (K).
Look at both atoms in the orbital viewer. Imagine them coming close together.
of fluorine (Fl) and potassium (K) to support your conclusions.
What do you predict will happen to the outer electron on the potassium atom?
Please give reasons for your prediction.
Task 10. Extended Interactivity of Atoms
Consider another pair of atoms like chlorine (Cl) and Sodium (Na) coming close together.
of (Cl) and Sodium (Na).
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Can you make a generalization about the size of the atoms as one goes horizontally from left to right across the table?
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Can you make a generalization about the size of atoms in a column in the table?<BR>
Does this generalization hold for all columns, or are there exceptions?
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Which are the smallest atoms? Where are they located in the table?<BR>
Can you make a guess at why these atoms are smaller than the ones at the left in a period?
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Which are the largest atoms? Where in the table are they located?
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What do you predict will happen to the outer electron in the potassium when it comes close to the fluorine atom?<BR>
Consider the distance between the potassium nucleus and the fluorine nucleus when they approach each other.
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Imagine them coming close together. Predict what might happen to the outer electron of the sodium atom when it is near the chlorine atom.
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Can you make a generalization about which atoms have the strongest attraction for the outer electrons of other atoms?
Please give reasons for your generalization.
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Can you list five or six properties of atoms and atomic structure that you did not know before doing the activities in this unit?
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I am ready to submit my report!
Periodic Table and Orbitals
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