All noble gasses contain electrons. In fact, all gasses contain electrons.
As all chemical elements atoms noble gases contain protons, neutrons and electrons.
Krypton is a noble gas with 36 electrons.
Helium is the only noble gas that doesn't have 8 valence electrons. It only has 2.
Noble Gas Configurations
Helium has only 2 valence electrons. The rest noble gases have eight.
Oxygen should gain 2 electrons to achieve noble gas configuration
noble gases all contain 8 valence electrons because they are in column 8A on the periodic chart
Oxygen needs to gain 2 electrons to achieve a noble gas configuration, as it has 6 valence electrons and wants a full valence shell of 8 electrons, like a noble gas.
It should loose 2 electrons to become a noble gas.
No, tin does not resemble a noble gas after losing its four valence electrons. Noble gases have a complete outer shell of electrons, making them stable and unreactive. Tin would become a positively charged ion after losing electrons, but it would not have the same electronic configuration as a noble gas.
Strontium has 38 electrons. It needs to give up 2 electrons to achieve a noble gas electron configuration, similar to the nearest noble gas, which in this case is krypton (36 electrons).
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