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can someone just help me?? I'm literally so confused on this. this is on electron configuration. the teacher tried to explain to me multiple times but i still don't understand ​

can someone just help me?? I'm literally so confused on this. this is on electron-example-1
User Thai Ha
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Answer:

you have to fill each boxes with upwards arrow first (↑) and followed by downwards arrow (↓) according to each element's atomic number

User Mink
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