Science, asked by aishahessa, 10 months ago

What is the atomic number of an element if electronic configuration is 3s^5!???

Answers

Answered by jenniferhill

0

Element Atomic number Electron configuration

helium 2 1s2

lithium 3 1s22s1

beryllium 4 1s22s2

boron 5 1s22s22p1

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