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Chemistry, 22.06.2019 00:00
Which of the following statements is true? a. elements in the last period are radioactive. b. atomic weight is the same as atomic mass. c. elements in the same group have the same number of electron shells. d. atomic number equals the number of neutrons in the nucleus of an atom.
Answers: 1
Chemistry, 22.06.2019 06:30
The minerals found in bones are deposited by living cells called
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Chemistry, 22.06.2019 08:30
Joan writes four numbers on the board in standard form, and then she writes their scientific notation
Answers: 1
PLEASEEE HELPP MEEE!! I NEED THISS THANK YOUUU <3
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History, 28.01.2020 07:31
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Mathematics, 28.01.2020 07:31
Mathematics, 28.01.2020 07:31
Mathematics, 28.01.2020 07:31
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Mathematics, 28.01.2020 07:31
History, 28.01.2020 07:31