Problem: A portion of a two-dimensional "slab" of NaCl(s) is shown here in which the ions are numbered.Which colored balls must represent sodium ions?

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We have to determine which colored balls represent sodium ions in the given diagram for NaCl.


An ionic compound is made from a cation and an anion.

A cation is formed by the loss of electrons from a neutral atom while an anion is formed by gain of electrons by a neutral atom.

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Problem Details
A portion of a two-dimensional "slab" of NaCl(s) is shown here in which the ions are numbered.

Atoms 1, 3, 5, 7 and 9 are all one element; 2, 4, 6, and 8 are all the same different element.

Which colored balls must represent sodium ions?

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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Atomic, Ionic, and Molecular Solids concept. If you need more Atomic, Ionic, and Molecular Solids practice, you can also practice Atomic, Ionic, and Molecular Solids practice problems.

What professor is this problem relevant for?

Based on our data, we think this problem is relevant for Professor Caddell's class at Modesto Junior College.