2punis
what happens when oxygen reacts with sodium?
o
a. electrons move from the sodium atoms to the oxygen atoms.
o
b. electrons move from the oxygen atoms to the sodium atoms.
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c. electrons are shared between the sodium atoms and the oxygen
atoms.
o
d. electrons become delocalized among the atoms.
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Astronomers discover an exoplanet (a planet of a star other than the sun) that has an orbital period of 3.87 earth years in its circular orbit around its sun, which is a star with a measured mass of 3.59 x 1030 kg. find the radius of the exoplanet's orbit.

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