Stability of Atoms

Multiple Choice

The more reactive the atoms are, the stable they are.

• True

• False

Multiple Choice

Neon and argon will NOT chemically react with other elements.

• True

• False

Multiple Choice

Group 2A elements such as Be donates their valence electrons.

• True

• False

Multiple Choice

What is the electron configuration of Na⁺¹?

• 1s²2s²2p⁶3s¹

• 1s²2s²2p⁶

• 1s²2s²2p⁶3s²

Multiple Choice

What is the oxidation number of Sulfur after stealing two electrons?

• +2

• -2

• 0

• +1

​+1

​+2

​+3

​-3

​-2

​-1

​0

​However, some metals can have more than one charge. These charges are useful during IONIC BONDING. An ionic compound is electrically neutral, therefore total positive charges must be equal to the total negative charges.

Multiple Choice

Which of the following statement/s is/are TRUE about stability?

• Losing electrons increases stability.

• Gaining electrons increases stability

• Shifting electrons increases stability.

• all of the choices are TRUE