Question

electronic configuration for be2+

Answer 1

Explanation:

Beryllium is the fourth element with a total of 4 electrons. In writing the electron configuration for beryllium the first two electrons will go in the 1s orbital. Since 1s can only hold two electrons the remaining 2 electrons for Be go in the 2s orbital. Therefore the Be electron configuration will be 1s22s2.

Answer 2

Answer:

The electronic configuration of Be2+ is [He] 2s².

Explanation:

Be2+ is the symbol for Beryllium. Beryllium is a chemical element with atomic number 4 and is present in s-block.  It is a silvery white alkaline metal which is lightweight, strong and brittle. It is solid at room temperature.

Beryllium is majorly used in alloys with either nickel or copper to make springs, gears and electrical equipment. Its oxides are toxic and carcinogenic in nature.