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Eva8 [605]
3 years ago
7

I need to know everything about the 13th element​

Biology
1 answer:
Anna35 [415]3 years ago
5 0

<u>Facts:</u>

  • Aluminum is the 13th element in the Periodic Table and one of Earth's most abundant metals, and so is aluminum.
  • Each atom of aluminum contains 18 protons.
  • Aluminum atoms with fewer than 18 electrons are cations, while those with more than 18 electrons are anions.
  • In 1884, the cap of the Washington Monument was made using aluminum because the metal was so highly valued at that time.
  • Only 5% of the energy needed to purify aluminum from alumina is required to recycle aluminum from scrap. In fact, you can even recycle the element at home, if you like.

<u></u>

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The correct answer is transitional.  

Gerobatrachus refers to an extinct genus of amphibamid temnospondyl, which thrived in the initial Permian, that is, about 290 mya, in the region, which is now known as Baylor County, Texas. The transitional form of fossils are those that demonstrate the intermediate form between the two distinct living species, it could be in a form of an ancestor and its descendants. It is considered that the frogs and salamanders have evolved from a common ancestor of primitive amphibian tetrapod subclass known as Temnospondyli.  


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The correct answer is:

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