An atom whose valence electron shell is nearly full is chemically reactive.
a. not
b. mildly
c. highly
d. the name of the element is needed to figure this out.

An atom whose valence electron shell is nearly full is highly reactive, if the atom requires only 1 and or 2 electrons to complete its octet and or have 8 valence electrons in its electron shell.

Sun is explosive itself spread 9 planets.earth is 3rd explosive in the solar system about 500 hundred million years ago . first earth became ice age and freezing climate.centre of earth magma. north zone is artic . south is anatric

1.75 is the weight of one medium egg