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book Holt Modern Biology 1st Edition by John Postlethwait ,Janet Hopson cover

Holt Modern Biology 1st Edition by John Postlethwait ,Janet Hopson

النسخة 1الرقم المعياري الدولي: 9780030651786
book Holt Modern Biology 1st Edition by John Postlethwait ,Janet Hopson cover

Holt Modern Biology 1st Edition by John Postlethwait ,Janet Hopson

النسخة 1الرقم المعياري الدولي: 9780030651786
تمرين 21
DIRECTIONS: Choose the letter of the answer choice that best answers the question. If an atom is made up of 6 protons, 7 neutrons, and 6 electrons, what is its atomic number?
F) 6
G) 7
H) 13
J) 19
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Holt Modern Biology 1st Edition by John Postlethwait ,Janet Hopson
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