How many neutrons does element x have if its atomic number is 41 and its mass number is 162?

Isn't this Chemistry But anyways am a budding Biochemist

        (Mass #) = (Atomic #) + (Neutron #)
: . (Neutron #) = (Mass #) - (Atomic #)
                       = 162 - 41
                       = 121

Note that: Atomic # = Amount of Protons = Amount of Electrons

This type of galaxy is an approximately ellipsoidal shape and a smooth, nearly featureless image. they are the largest single star systems, in the universe and are built by the collisions of many smaller galaxies.

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