The first 10 amendments to the Constitution are known as the Bill of Rights.
Answer: C
D. African slaves in the American colonies
The author who proposed the theory of "natural selection," which other people called "survival of the fittest" was named Charles Darwin. These two ideas are the founding basis of the theory of evolution.
valence electrons are electrons found in the outer shell of an atom. these are electrons that participate in CHEMICAL BONDING. an atom will either give up its valence electrons, gain valence electrons from another atom, or share valence electrons with another atom.
these are the only types of electrons that participate in chemical bonding - since they live in the outer most shell of an electron. no other electrons in an atom can bond. that's why these electrons have their own name.
an atom will do whatever it can to reach its full octet of valence electrons. that that means is that an atom is most stable when it has 8 electrons in its outer shell (it's the most stable and strong that way); hence the name OCTET.
i hope this helps!