The answer is <span>nitrogen triodide
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Answer: An atom valence electron shell determines its chemical reactivity.
Explanation:
An atom's valence electron shell determines its chemical reactivity. The amount of electrons in the outermost shell of an atom is its valence electron and it determines how reactive the atom is.
The reactivity of an atom depends on the number of electrons in its outermost shell. Atoms that has their outermost electrons full e.g noble gases like argon, krypton etc are unreactive because there is no room for the atom to donate or accept any electron.
Elements like sodium and chlorine are reactive because they possesses 1 and 7 electrons in their outermost shell respectively as such they can donate and accept electrons making them reactive elements.
ALL of the quantities are unknown, because you haven't bothered to tell us anything that's known.
Answer:
Galileo thought that a ball, rolling or sliding down a hill without friction, would run up to the same height on an opposite hill.
Suppose that the opposite hill was horizontal. Would the ball's motion continue forever along the tangent, or forever parallel to the Earth's surface
Galileo's conclusion from this thought experiment was that no force is needed to keep an object moving with constant velocity.
Newton took this as his first law of motion.
Explanation:
Here ya go-
3.9949X10^9 is the answer
