Chemistry

Chemistry, 22.08.2019 04:00, francisco42002

What is the atomic number of zinc, lithium, silicon, and bromine?

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Chemistry, 26.06.2019 18:40, hdolly81

Select the correct answer. what is the mass defect of lithium? assume the following: atomic number of lithium = 3 atomic mass of lithium = 7.0144 atomic mass units. mass of 1 proton = 1.0073 atomic mass units. mass of 1 neutron = 1.0087 atomic mass units. a. 0.0043 atomic mass units b. 0.0423 atomic mass units c. 3.0219 atomic mass units d. 4.0348 atomic mass units e. 7.0567 atomic mass units

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Chemistry, 21.07.2019 12:00, andrewjarrah05

The isotope lithium-7 has a mass of 7.0160 atomic mass units, and the isotope lithium-6 has a mass of 6.0151 atomic mass units. given the information that 92.58 percent of all lithium atoms found in nature are lithium-7 and 7.42 percent are lithium-6, calculate the atomic mass of lithium, li (atomic number 3).

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Chemistry, 30.07.2019 22:00, levicorey846

Lithium has a relative atomic mass of 7. bromine has a relative atomic mass of 80. a compound was found to contain 16g of lithium and 183g of bromine. what is the empirical formula of this compound?

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Physics, 27.09.2019 10:00, moorealexis819owh9lb

What is the mass defect of lithium? assume the following: atomic number of lithium = 3 atomic mass of lithium = 7.0144 atomic mass units. mass of 1 proton = 1.0073 atomic mass units. mass of 1 neutron = 1.0087 atomic mass units. (a)0.0043 atomic mass units (b)0.0423 atomic mass units (c)3.0219 atomic mass units (d)4.0348 atomic mass units (e)7.0567 atomic mass units

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