Final answer:
Noble gases have a full outer shell and eight electrons in their valence shell. They rarely react with other elements in nature.
Step-by-step explanation:
Noble gases are a group of elements in the periodic table that have full outer shells. This means that they have the maximum number of electrons that their outermost shell can hold. In the case of noble gases, this is usually eight electrons. Therefore, the statement 'They all have the same number of electrons' is incorrect. The correct statement is 'They have a full outer shell' and 'They have eight electrons in their valence shell'. Additionally, noble gases are known for their low reactivity and rarely react with other elements in nature.
Learn more about Noble gases