Exploring Ion Formation Processes

This video tutorial covers the formation of ions, focusing on the characteristics of Group 1 and Group 2 metals, as well as non-metals and halogens. It explains how metals form positive ions by losing electrons, while non-metals form negative ions by gaining electrons. The tutorial also introduces polyatomic ions, providing examples and explaining their charges. The lesson concludes with a recap of key points and learning objectives.

Which elements typically form positive ions?

• Non-metals

• Metals

• Noble gases

• Halogens

What is the charge of a sodium ion?

• Na2+

• Na-

• Na+

• Na3+

Why do Group 1 metals form positive ions?

• They lose two electrons

• They lose one electron

• They gain electrons

• They gain one electron

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What is the common characteristic of Group 1 metals?

• They have two valence electrons

• They have one valence electron

• They have three valence electrons

• They have four valence electrons

Tags

NGSS.HS-PS1-1

What charge do Group 2 metals typically form?

• 4+

• 3+

• 2+

• 1+

Which of the following is a Group 2 metal?

• Fluorine

• Sodium

• Magnesium

• Chlorine

Tags

NGSS.HS-PS1-1

What is the charge of a calcium ion?

• Ca3+

• Ca2+

• Ca+

• Ca-

What happens to the name of a non-metal when it gains an electron?

• It changes to end with -ide

• It remains the same

• It changes to end with -ate

• It changes to end with -ite

Which group of elements is known as the halogens?

• Group 1

• Group 2

• Group 17

• Group 16

What is a polyatomic ion?

• A molecule with a charge acting as a single unit

• A neutral molecule

• A single atom with a charge

• A noble gas