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Course: High school chemistry > Unit 2

Lesson 1: Ionic bonds
Science
High school chemistry
Chemical bonding
Ionic bonds
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Apply: predicting ion formation

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You might need: Periodic table

Problem

Group 17 elements are called halogens. Halogen means "salt former," derived from the Greek words halo- ("salt") and -gen ("formation"). Halogens bond with metals to form a wide variety of ionic compounds (salts).
Three halogen samples in glass containers: chlorine is a yellow-green gas, bromine is a dark red liquid, and iodine is a purple-black solid.
Three pure halogens: chlorine gas, liquid bromine, and solid iodine
Complete the statement.
To produce stable ions, halogens
electron(s) to form ions with a
charge.