ar999
Answered

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Determine what’s wrong with these electronic configurations

Determine Whats Wrong With These Electronic Configurations class=

Sagot :

Answer:

Explanation:

19) it is 3d10 instead of 4d10

20) it is missing 3p6, and 4s2 before 3d5

21) Ra is not a noble gas

22) Cs is not a noble gas

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