Ion

The video tutorial explains the concept of ions, which are atoms or molecules with an electrical charge due to the loss or gain of electrons. It distinguishes between cations, which are positive ions formed by losing electrons, and anions, which are negative ions formed by gaining extra electrons.

What is an ion?

• A neutral atom

• A molecule with no charge

• An atom or molecule with an electrical charge

• A type of chemical bond

How is a cation formed?

• By sharing electrons

• By splitting atoms

• By losing electrons

• By gaining electrons

Which of the following is true about cations?

• They are formed by gaining protons

• They have a negative charge

• They have a positive charge

• They are neutral

What happens when an atom becomes an anion?

• It loses protons

• It gains protons

• It gains electrons

• It loses electrons

An anion is characterized by which of the following?

• A positive charge

• A neutral charge

• A negative charge

• No charge