Which of the following elements have 3 valence electrons? Choose all
that apply. *
...
Chemistry, 20.04.2020 02:44 sistersaray
Which of the following elements have 3 valence electrons? Choose all
that apply. *
lithium
boron
nitrogen
neon
phosphorous
aluminum
Answers: 1
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What is the ima of the 1 st class lever in the graphic given? 2 3 0.5
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Chemistry, 22.06.2019 10:50
8) a mixture of he, ne and ar has a pressure of 7.85 atm. if the ne has a mole fraction of 0.47 and 8) ar has a mole fraction of 0.23, what is the pressure of he? a) 4.2 atm b) 3.7 atm c) 5.5 atm d) 2.4 atm e) 1.8 atm
Answers: 1
Chemistry, 22.06.2019 12:00
What are the first two quantum numbers for the electrons located in subshell 4d? what are the first three quantum numbers for the electrons located in subshell 2s? how many electrons can be held in a sublevel l = 3? how many electrons can be held in the energy level n = 4? how many electrons in an atom can share the quantum numbers n = 4 and l = 3?
Answers: 1
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Answers: 2
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