7 is atomic symbol 9 is atomic density 8 is the atomic number
Answer:
Atoms in the same group share the same amount of valence electrons and reactivity. Atoms in the same period, share energy levels.
Explanation:
FC(C) = 4 - 0.5*8 - 0 = 0) FC(Cl) = 7 - 0.5*2 - 6 = 0
Answer:
the fossils on some of the continents were in the same spots as fossils on other continents
Explanation:
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