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in the first shell there are 2 electrons
there is only one shell because the rule is first shell 2 second shell 8 third shell 8 forth shell whats left unless it is a transition metal then their is always two on the out side unless in is copper or chromium then there is just one and the third shell has the leftovers up to 18 .
sorry i got a little cared away
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How many shells does a helium have?
Helium has only 1 shell with two electrons.
How many filled electron shells does helium have?
Helium has only 1 shell with two electrons.
How many electrons shells does a helium atom have?
The electron configuration of helium is 1s2; two electrons on the first (and the single) electron shell.
How many inner shell electrons are there in Helium?
Since Helium is a noble gas meaning it is stable, and the fact that it has one shell, it has 2 shells in its inner-most shell.
How many rings does a helium atom have?
I assume you mean energy levels/shells. It has 1.
How many shells does a helium have?
Helium has only 1 shell with two electrons.
How many filled electron shells does helium have?
Helium has only 1 shell with two electrons.
How many electrons shells does a helium atom have?
The electron configuration of helium is 1s2; two electrons on the first (and the single) electron shell.
How many inner shell electrons are there in Helium?
Since Helium is a noble gas meaning it is stable, and the fact that it has one shell, it has 2 shells in its inner-most shell.
How many rings does a helium atom have?
I assume you mean energy levels/shells. It has 1.
How many electrons in the shells of helium?
The first and only filled shell has two electons. The nucleaus has two protons. He-4 also has two neutrons.
What Atom has 2 completely filled shells and no electrons anywhere else?
The atom that has 2 completely filled electron shells and no electrons anywhere else is helium. Helium has a total of 2 electrons, with both shells being completely filled with 2 electrons in the first shell.
Is helium a noble gas or a chemical?
Helium is a noble gas. It is part of the group of gases known as noble gases which have low reactivity due to their full outer electron shells.
What star in the life cycle of stars fuses hydrogen and helium?
A "red giant" star can fuse both hydrogen (in the star's outer shells) and helium (in the core).
How many shells does hydrogen have?
All elements in the first period have 1 shell. That's hydrogen and helium.
How is the noble gas element helium differ from radon?
Helium has 2 electrons and Radon has 86 electrons but both have 8 valence electrons (8 electrons in their outermost shells)
What ions have the same electron configuration as helium?
Lithium ion (Li+) and beryllium ion (Be2+) have the same electron configuration as helium because they both have filled electron shells.
