영어에서 Valence electrons 을 사용하는 예와 한국어로 번역
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Valence Electrons.
So we have seven valence electrons.
Valence electrons are just the outermost electrons. .
So these all have three valence electrons.
So two valence electrons leftover.
Or you could say three valence electrons.
Valence electrons, or electrons in the outermost shell?
So each fluorine get six more valence electrons.
So how many valence electrons does it have?
Where you're only drawing the outermost, valence electrons.
The total number valence electrons for my molecule will be 28 plus 4.
So therefore one atom of silicon has four valence electrons.
So let's see how many valence electrons we have accounted for so far.
It's still a metal, even though it has four valence electrons.
This iron has 2 valence electrons, because the outer shell is 4s2.
Carbon's in group four, so therefore carbon will have four valence electrons.
So we can figure out how many valence electrons we're dealing with here.
He knows that a uranium atom has 92 protons and92 electrons, of which six are valence electrons.
So 7 times 4 gives me 28 valence electrons for my fluorine.
So I just drew four covalent bonds, and we know that each covalent bond represents two valence electrons, right?
So we figured out how many valence electrons we need to account for for our dot structure.
So let's do a quick clicker question,and you tell me how many valence electrons does fluorine have?
And since I'm assigning six valence electrons to four fluorines, 6 times 4 gives me 24.
And as you can see, as you go down the periodic table you can kind of have metals that have more and more valence electrons.
It is in group eight, so eight valence electrons for xenon.
That if they are able to shed some of these valence electrons-- so if I write iron has two valence electrons like that-- even if they shed these electrons, they kind of have a reserve of electrons in the d subshell for the previous shell.
So getting back to our molecule,silicon tetrafluoride, if I wanted to find out how many total valence electrons are in this molecule, I need to find these elements on my periodic table.
Assessment Boundary: Assessment does not include valence electrons and bonding energy, discussing the ionic nature of subunits of complex structures, or a complete description of all individual atoms in a complex molecule or extended structure is not required.
Remember it has five valence electrons; it wants to share them with oxygen.
Assessment Boundary: Assessment does not include valence electrons and bonding energy, discussing the ionic nature of subunits of complex structures, or a complete description of all individual atoms in a complex molecule or extended structure is not required.