Understanding Ions and Their Charges

This video introduces the flipped classroom approach, where students watch lectures at home and practice problems in class. It reviews ions and atoms, explaining their charges and differences between metals and non-metals. The video covers drawing Lewis Dot Diagrams and naming ions, including cations, anions, and transition metals. It concludes with an introduction to polyatomic ions, emphasizing the need for memorization and practice.

What is the main goal of the flipped classroom model introduced in the video?

• To increase the amount of homework

• To have students watch lectures at home and practice in class

• To eliminate the need for practice problems

• To reduce the number of classroom sessions

How do atoms differ from ions in terms of charge?

• Atoms have a charge, ions do not

• Atoms have no charge, ions have a charge

• Both atoms and ions have no charge

• Both atoms and ions have a charge

What happens to metals when they lose electrons?

• They gain more electrons

• They remain neutral

• They become negatively charged

• They become positively charged

According to the octet rule, how many valence electrons do elements ideally want?

• Six

• Eight

• Four

• Ten

How do you name a cation?

• Add 'ate' to the element name

• Add 'ion' to the element name

• Add 'ide' to the element name

• Add 'ite' to the element name

What is the naming convention for anions?

• Add 'ite' to the element name

• Replace the ending with 'ide'

• Add 'ate' to the element name

• Add 'ion' to the element name

How are transition metals named when they have multiple charges?

• By using Roman numerals to indicate the charge

• By adding 'ion' to the name

• By using Arabic numerals to indicate the charge

• By adding 'ide' to the name

What defines a polyatomic ion?

• It is composed of a single atom

• It is composed of more than one atom

• It is always positively charged

• It has no charge

Which of the following is an example of a polyatomic ion?

• H+

• CO3 2-

• Cl-

• Na+

What is the charge of the nitrate ion (NO3)?

• 0

• -1

• -2

• +1