Ions and the Octet Rule (Simplified) Practice Problems

Identify the noble gas that matches the arrangement of electrons of beryllium ion from the following:

Choose the correct statement on the formation of a strontium ion and the complete octet.

Determine the number of electron/s gained or lost by cesium when it forms an ion.

True or False. The fluoride ion, F⁻, has a noble gas configuration because it has the same number of electrons as a noble gas.