Question
Write the symbol for each isotope in the form $\underset{2}{2} X$(a) cobalt-60(b) neon-22(c) iodine-131(d) plutonium-244
Step 1
We can find these on the periodic table. For cobalt (Co), the atomic number is 27. For neon (Ne), the atomic number is 10. For iodine (I), the atomic number is 53. For plutonium (Pu), the atomic number is 94. Show more…
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