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Chemistry
OpenStudy (anonymous):

Which symbol correctly represents an element (D) whose atoms contain 15 protons and 20 neutrons?

OpenStudy (chmvijay):

no of protons = atomic number of element

OpenStudy (anonymous):

Ne?

OpenStudy (anonymous):

Wait Ca

OpenStudy (anonymous):

35/15 D I think

OpenStudy (abb0t):

\(D\) isn't even an answer choice, amy! Lol what the heck!

OpenStudy (anonymous):

Amy's correct, thank you

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