Understanding Ion Charges

This video tutorial explains how to determine the charge of an element when it becomes an ion, using the periodic table. It covers monoatomic ions, alkali metals, alkaline earth metals, transition metals, and groups 3A to 7A. The tutorial also discusses electron configuration, oxidation states, and polyatomic ions, providing formulas and examples to calculate ion charges.

Which group of elements typically forms ions with a +1 charge?

• Alkaline earth metals

• Halogens

• Alkali metals

• Noble gases

What is the typical charge of ions formed by alkaline earth metals?

• +1

• +2

• -1

• -2

How many valence electrons does aluminum have?

• 1

• 2

• 3

• 4

What charge does silicon typically have when it gives up all its valence electrons?

• +1

• +2

• +4

• +3

Which of the following elements is a non-metal that typically forms a -3 charge?

• Fluorine

• Nitrogen

• Oxygen

• Sulfur

What is the charge of an ion with 13 protons and 10 electrons?

• +1

• -1

• -3

• +3

What is the oxidation state of copper in copper(II) chloride?

• +4

• +3

• +2

• +1

Which transition metal commonly has a +2 oxidation state?

• Gold

• Silver

• Iron

• Zinc

What is the charge of sulfate ion?

• +2

• -3

• -2

• -1

What is the charge of ammonium ion?

• -1

• +1

• -2

• +2