Question

ᴡʜᴀᴛ ɪꜱ ᴀᴜꜰ ʙᴀᴜ ʟᴀᴡ

ᴇxᴩʟᴀɪɴ ɪᴛ

ʜʟᴡ​

Answer 1

Answer:

The aufbau principle, from the German Aufbauprinzip, also called the aufbau rule, states that in the ground state of an atom or ion, electrons fill subshells of the lowest available energy, then they fill subshells of higher energy. For example, the 1s subshell is filled before the 2s subshell is occupied

Explanation:

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Answer 2

Answer:

this is the answer

Explanation:

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