Strontium-89 chloride is in a class of drugs known as radioisotopes. It delivers radiation to cancer sites and ultimately decreases bone pain. Recall that Beta(minus) decay is when a neutron spontaneously changes to a proton and emits an electron and an antineutrino. a) Write the beta decay formula that shows what Sr- 89 decays into. b) How many protons does Sr-89 have and how do you know? c) How many neutrons does Sr-89 have and how do you know? d) How many electrons does an electrically neutral atom of Sr-89 have?

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Strontium-89 chloride is in a class of drugs known as radioisotopes. It delivers radiation to cancer sites and ultimately decreases bone pain. Recall that Beta(minus) decay is when a neutron spontaneously changes to a proton and emits an electron and an antineutrino. a) Write the beta decay formula that shows what Sr- 89 decays into. b) How many protons does Sr-89 have and how do you know? c) How many neutrons does Sr-89 have and how do you know? d) How many electrons does an electrically neutral atom of Sr-89 have?
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