<u>Answer:
</u>
When the outer electron shell is full in an element, this creates a Noble gas.
<u>Explanation</u>:
Noble gases are the elements that belong to group 18 in the periodic table. Noble gases are also called as inert gases. The outermost shell of the noble gases are fully filled by electrons. Due to this the noble gases don’t react with any other elements and remain isolated.
There are 6 noble gases in the periodic table. They are helium (He), Argon (Ar), Neon (Ne) Krypton (Kr), Radon (Rn) and Xenon (Xe). Noble gases conduct electricity. They are fluorescent, odorless and colorless. Noble gases are used a maintain stable elements in a constant and safe environment.
The choices can be found elsewhere and are as follows:
a. mycelia
<span>b.hyphae </span>
<span>c. spores
</span>
I think the correct answer is option B. These filaments are called hyphae. It<span> is a long, branching filamentous structure of a fungus, oomycete, or actinobacterium. Hope this answers the question.</span>
I am confused are there any choices
The answer would be D, 7 hours of sleep