What has an electronic configuration of 2881?

The electronic configuration of 2881 corresponds to the element Strontium (Sr), which has an atomic number of 38. In this configuration, the numbers represent the distribution of electrons in the various energy levels or shells: 2 electrons in the first shell, 8 in the second, 8 in the third, and 1 in the fourth shell. Strontium is an alkaline earth metal known for its reactivity and is commonly used in fireworks and in the production of certain alloys.