Chemistry, 10.12.2020 18:20 povijuaisaiah

An atom of uranium, whose atomic number is 92, transforms in nature to an atom of thorium plus a nucleus of helium, whose atomic number is 2. What is the atomic number of thorium?
O A 88
OB. 90
OC. 92
OD. 94

Answers: 2

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An atom of uranium, whose atomic number is 92, transforms in nature to an atom of thorium plus a nucleus of helium, whose atomic number is 2. What is the atomic number of thorium? O A 88 OB. 90 OC. 92 OD. 94

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An atom of uranium, whose atomic number is 92, transforms in nature to an atom of thorium plus a nucleus of helium, whose atomic number is 2. What is the atomic number of thorium?
O A 88
OB. 90
OC. 92
OD. 94