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This sounds like Helium. It only has 1 electron shell and since it is the first shell, it only has room for 2 electrons, hence why it is full!

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Related Questions

What is the symbol for one element that DOES NOT need eight electrons to have full set of valence electrons?

An element that does not require eight electrons for a full set of valence electrons is represented by the element symbol B. Boron only needs six electrons to complete its valence shell and achieve stability.


What element whose valence electrons is full with two electrons on the periodic table?

Helium


What element could have two electrons in their outermost level and be full?

Helium has only 2 electrons and its energy level is full.


Is the element reactive or satble how do you know?

If the element has a full valence shell, such as the noble gases, then it is unreactive. It the element is missing few valence electrons of has few valence electrons, then the element is very reactive, such as the sodium.


What makes an element stable?

an element is stable when it has a full outer shell of electrons. to abide by the octet rule it must have a shell of 2 then 8 electrons. An element with a full outer shell (8) will be stable and act like its nearest noble gas.


How Many unpaired electrons does Barium?

Barium has 0 unpaired electrons. It has a full outer shell of electrons, which is why it is a stable element.


What is The element that has no unpaired electrons in the outer shell in its ground state is?

There are many elements which have no unpaired electrons in their outer shells. The Noble gasses all have closed shells of valence electrons. The alkali earth metals (Beryllium, Magnesium, Calcium etc) also have no unpaired electrons, although their outer shell is not entirely full.


Which element has a full outermost energy level contining only two electrons?

Helium has a full outermost energy level containing only two electrons.


Which element has a full outermost energy level containing two electrons?

Helium (He)


What element has a stable 2 valence electrons?

The element with a stable 2 valence electrons is helium. Helium has a full outer electron shell with 2 electrons, making it very stable and unreactive.


Which elements is less reactive an element whose atoms have seven valence electrons or an element whose atoms have eight valence electrons?

the element with seven valence electrons will be more reactive. The reason for this is that elements want to always want to have a full valence shell (they always want 8, like a noble gas). The element with eight valence electron is happy with its full shell and will not want to get rid of any electrons.


How does the elements reacts to each other?

An element reacts with another element by sharing electrons. The elements keep sharing electrons until both elements have a full outer shell.