From health tips to tech hacks, find it all on IDNLearn.com. Find in-depth and accurate answers to all your questions from our knowledgeable and dedicated community members.

How many inner shell electrons does beryllium have?

Sagot :

Beryllium has two inner shell electrons
and two 2s electrons in the Be atom. Its electron configuration is thus 1s22s2or[He]2s2 The symbol [He] denotes the inner shell of two 1s electrons which have the same configuration as the noble gas He. The beryllium atom is noticeably smaller than the lithium atom