Colorado Esthetician Written Practice Exam

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Prepare for the Colorado Esthetician Written Exam with our comprehensive quiz. Dive into multiple-choice questions and study materials tailored to help you excel. Gain confidence and knowledge as you prepare for your licensure!

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What is a cation?

An atom with a positive charge
An atom with a negative charge
A molecule with a neutral charge
An atom without protons

The correct answer is: An atom with a positive charge

A cation is an atom that has lost one or more electrons, resulting in a positive charge. This is because there are more protons than electrons in the atom, leading to an overall positive charge. This definition aligns with Option A. Option B is incorrect because an atom with a negative charge is called an anion. Option C is incorrect because cations are not neutral, they have a positive charge. Option D is incorrect because atoms always contain protons, which are positively charged particles in the nucleus.