The first and second electron shells of an element are filled and there are three electrons...
The first and second electron shells of an element are filled and there are three electrons in the third electron shell. What is the atomic number for this element?
Homework Answers
number of electrons in first shell= 2
number of electrons in second shell=8
number of electrons in thord shell= 3
so total number of electrons= 2+ 8 + 3= 13
so atomic number= 13
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The first and second electron shells of an element are filled
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1. Enter the number of electrons in each energy level (shell)
for the following elements. If the energy level does not contain
any electrons, enter a 0 (zero).
2. What is the neutral atom that has its first two energy levels
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9 please help
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1. Enter the number of electrons in each energy level (shell)
for the following elements. If the energy level does not contain
any electrons, enter a 0 (zero).
2. What is the neutral atom that has its first two energy levels
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