Ionic Bonds and Atomic Charges

The video delves into the intricacies of ionic bonding, focusing on sodium and chlorine. It explains electron arrangements, valence shells, and how atoms achieve stability through electron transfer. The process results in charged ions, leading to the formation of ionic bonds. The video emphasizes the complexity of this concept and encourages revisiting the material for better understanding.

What is the atomic number of sodium, and how many electrons does it have in a neutral state?

• 11, with 11 electrons

• 12, with 12 electrons

• 10, with 10 electrons

• 13, with 13 electrons

Why are sodium and chlorine atoms considered unstable?

• They have more electrons than protons.

• They have full valence shells.

• They have incomplete valence shells.

• They have more protons than electrons.

How does sodium achieve a stable electron configuration?

• By losing an electron

• By gaining a proton

• By gaining an electron

• By sharing an electron

What happens to chlorine when it gains an electron from sodium?

• It remains neutral.

• It becomes positively charged.

• It loses a proton.

• It becomes negatively charged.

What is the charge on a sodium ion after it loses an electron?

• Neutral

• 2+

• 1-

• 1+

What is the charge on a chlorine ion after it gains an electron?

• 2+

• 1-

• Neutral

• 1+

Why do sodium and chlorine ions attract each other?

• They have the same number of electrons.

• They have opposite charges.

• They have the same charge.

• They have the same number of protons.

What is the result of the attraction between sodium and chlorine ions?

• Formation of an ionic bond

• Formation of a covalent bond

• No bond formation

• Formation of a metallic bond

What is the main reason atoms form ionic bonds?

• To decrease their atomic mass

• To gain more protons

• To achieve a full valence shell

• To increase their atomic number

What happens to the valence shell of sodium after it loses its outer electron?

• It gains more electrons.

• It remains unchanged.

• It becomes partially filled.

• It disappears.