Answer: 10 core electrons
2 valence electrons
Explanation:
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The following reaction is a DECOMPOSITION reaction evident by the fact that instead of multiple reactants reacting to produce products, a single compound breaks up (decompose) to form multiple products.
Answer:
Group 17 elements:
Flourine (F), Chlorine (Cl), Bromine (Br), Iodine (I), and Astatine (As).
Period 2 elements:
Lithium (Li), Beryllium (Be), Boron (B), carbon (C), Nitrogen (N), Oxygen (O), flourine (F), And Neon.
95 percent of species known are invertebrates
