which is the electron configuration for boron? 1s²2s³ 1s²2s²3s¹ 1s¹2s²2p² 1s²2s²2p¹
which is the electron configuration for boron? 1s²2s³ 1s²2s²3s¹ 1s¹2s²2p² 1s²2s²2p¹
Answer
Answer:
1s²2s²2p¹
Explanation:
Step1: Recall boron's atomic number
Boron has atomic number 5.
Step2: Fill electrons according to rules
Electrons fill orbitals in order of increasing energy. First, 2 electrons go in 1s (1s²), then 2 in 2s (2s²), and the remaining 1 in 2p (2p¹).