Final answer:
The compound Be(NO2)2 is named beryllium nitrite, following the standard naming conventions for ionic compounds with main group cations and polyatomic anions.
Step-by-step explanation:
The compound name of Be(NO2)2 is beryllium nitrite. When naming ionic compounds where the cation is from a main group element and does not have variable charges, we use the name of the cation followed by the name of the anion, eliminating the word ion from both parts. In this case, 'Be' stands for beryllium, and 'NO2' is the nitrite ion, leading to the name beryllium nitrite.