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This depends which shell it is up to. Helium has a full shell and it only has 2 electrons. Neon then, still with a full outer shell has 8 on the full outer shell with 2 inside those 8.
This keeps changing as you go up. I do believe the amount of electrons on the outer shell goes 2, 8, 8, 18, 18, 32. Those apply to the stable elements (in order) Helium, Neon, Argon, Krypton, Xenon and Radon.
Those numbers apply to the outside shell, please note all the shells below that outside one still exist and are still full.
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How many electrons to most elements need to become stable?
Most elements need 8 electrons in their valence shells.
When is an atom most stable?
Answer When the outermost shell(valence shell) is filled the atom is to be most stable. First Shell: holds up to 2 electrons Second Shell: holds up to 8 electrons Third Shell: holds up to 18 electrons Fourth Shell: holds up to 32 electrons
All atoms become stable when they have how many valence electrons?
Only when their outer shell is saturated>>>>>>>>>>>>
How many electrons would an atom of magnesium have to lose to have a stable octe?
It'll have to lose two to have a stable octet.
How many more electrons does silicon need to fill its outer shell?
silicon's atomic number is 14 so, its electron configuration is 2.8.4, the third shell needs 4 more electrons to make it 8 and to become stable. ---> so the answer is 4.
How many electrons are required in the outermost shell of an element for it to be safe?
8 to make it stable and least reactive.
How many valence electrons will make an element stable?
The number depends on what will fill the outer shell. It can be 2 or 8.
How many electrons to most elements need to become stable?
Most elements need 8 electrons in their valence shells.
How many electrons of the most stable have in there outer energy level?
The most stable atoms/ions have 8 electrons in their outermost shell.
How many electrons does an atom need in its outer shell to be stable?
5
How many valence electrons will make an element chemically stable?
The number depends on what will fill the outer shell. It can be 2 or 8.
When is an atom most stable?
Answer When the outermost shell(valence shell) is filled the atom is to be most stable. First Shell: holds up to 2 electrons Second Shell: holds up to 8 electrons Third Shell: holds up to 18 electrons Fourth Shell: holds up to 32 electrons
All atoms become stable when they have how many valence electrons?
Only when their outer shell is saturated>>>>>>>>>>>>
How many electrons does an atom need in its outer energy level to be stable?
Most atoms require eight electrons in the outer shell to be stable. The exception is atoms that are only filling the s1 orbital, which becomes stable with only two electrons.
How many electrons would an atom of magnesium have to lose to have a stable octe?
It'll have to lose two to have a stable octet.
How many more electrons does silicon need to fill its outer shell?
silicon's atomic number is 14 so, its electron configuration is 2.8.4, the third shell needs 4 more electrons to make it 8 and to become stable. ---> so the answer is 4.
How many atoms are stable with valence electrons?
you would need a full outer shell so 8
