Transition metals can have multiple oxidation states because of their electrons. The transition metals have several electrons with similar energies, so one or all of them can be removed, depending the circumstances. ... When they attach to other atoms, some of their electrons change energy levels.
Answer:
iodine heptafluoride
Explanation:
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Answer:
I put it in the upload.
Explanation:
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Answer:
B
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The answer to this question would be: <span>B. They have a higher mass
The mass of an atom is determined by their mass number which was the sum of their protons and neutrons. Protons of an element will be same. So any isotope of an element will have the same number of proton, no isotope should have more proton. The mass is increased because some isotope has more neutrons than others, resulting in a higher mass.</span>