Chemistry, 31.01.2021 23:20 Emmaxox715
Pl I’m begging help Determine the Number of Protons, Electrons, and Neutrons For the Following Elements:
Vanadium - 53 Copper - 65
Gold - 198 Calcium - 42
Fluorine - 20 Chlorine - 37
Answers: 2
Chemistry, 22.06.2019 03:30
The atomic radius of sodium is 186 pm and of chlorine is 100 pm. the ionic radius for na+ is 102 pm and for cl– is 181 pm. in going from na to cl in period 3, why does the atomic radius decrease while the ionic radius increases? a. the inner electrons in the sodium cation shield its valence electrons more effectively than the inner electrons in the chloride anion do. b. the inner electrons shield the valence electrons more effectively in the chlorine atom than in the chloride anion. c. the outermost electrons in chloride experience a smaller effective nuclear charge than those in the sodium cation do. d. the outermost electrons in chloride experience a larger effective nuclear charge than those in the sodium cation do. e. monatomic ions are bigger than the atoms from which they are formed.
Answers: 2
Chemistry, 23.06.2019 04:31
Areaction is first order. if the initial reactant concentration is 0.0200 m, and 25.0 days later the concentration is 6.25 x 10-4 m, then its half-life is:
Answers: 1
Chemistry, 23.06.2019 05:20
Explain how global warming could have affected yellowstone frog and salamander habitat's, resulting in changes in the populations of these species
Answers: 2
Pl I’m begging help Determine the Number of Protons, Electrons, and Neutrons For the Following Eleme...
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