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OpenStudy (mtalhahassan2):
Need help!! What is the atomic number of the element that has the first three electrons shells completely filled?
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OpenStudy (mtalhahassan2):
a) 28 b) 26 c) 20 d) 18
OpenStudy (kash_thesmartguy):
D is your answer @MTALHAHASSAN2 BTW, Cricket World Cup '15 is over way before this!
OpenStudy (mtalhahassan2):
lol I know
OpenStudy (mtalhahassan2):
can you plz help me with one more question
OpenStudy (mtalhahassan2):
plz
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