Ionic Charges and Electron Configuration

This video tutorial explains how to determine the charges of ions using the periodic table. It covers the identification of valence electrons in different groups, the distinction between metals, non-metals, and metalloids, and how metals and non-metals form ions. The video also discusses special cases like carbon and polonium, and summarizes the concept of ionic bonding.

What is the number of valence electrons in group 17 elements?

• 5

• 7

• 6

• 8

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

• Group 1

• Group 2

• Group 17

• Group 13

What charge do elements in group 2 form when they become ions?

• -2

• -1

• +2

• +1

Which element in group 13 forms a +3 ion by losing three electrons?

• Gallium

• Indium

• Aluminum

• Boron

What charge do group 17 elements typically have when they form ions?

• +2

• +1

• -1

• -2

How many additional electrons does oxygen need to complete its octet?

• 1

• 4

• 3

• 2

What is the charge of a nitrogen ion after gaining three electrons?

• -1

• -2

• -3

• +3

Why does carbon generally not form ionic bonds?

• It is a metal

• It has a full valence shell

• It needs to gain or lose four electrons

• It is a noble gas

What are positively charged ions called?

• Anions

• Neutrons

• Protons

• Cations

What are negatively charged ions known as?

• Neutrons

• Cations

• Protons

• Anions