Chemistry, 27.10.2021 09:20 nickname278
Which atom in the ground state has a completely filled outer electron energy level? A) He B) Be C) H D) Hg
Answers: 3
Chemistry, 22.06.2019 23:10
Afusion reaction takes place between carbon and another element. neutrons are released, and a different element is formed. the different element is a) lighter than helium.b)heavier than helium.c)the same weight as helium.d)dependent on the element that reacted with carbon.
Answers: 3
Chemistry, 23.06.2019 00:00
The empirical formula of a compound is ch2o and its mass is 120 amu/molecule, what is its formula?
Answers: 2
Which atom in the ground state has a completely filled outer electron energy level? A) He B) Be C) H...
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