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An element found in another galaxy exists as three isotopes. Measurements indicate that 15.0% of the atoms have an atomic mass of 83.00 amu, 82.0% have an atomic mass of 84.00 amu, and the other 3.0% have an atomic mass of 82.00 amu. Based on the approximate atomic mass of the element, what is the element? 

A cat strolls across your backyard. An hour later, a dog with its nose to the ground follows the trail of the cat. What is going on from a molecular point of view?

Complete the following nuclear reaction equation:

Which of the following does not describe a nuclear fission reaction?

If a neutral element has the following chemical symbol, how many electrons does it have?

Is the mass of an atomic nucleus greater than or less than the sum of the masses of the nucleons composing it? Why don’t the nucleon masses add up to the total nuclear mass?

When food is irradiated with gamma rays from a cobalt-60 source, does the food become radioactive? Why or why not?

Relative to radio waves, the velocity of visible light waves in a vacuum is

Which chemical family is composed almost entirely of man-made elements?

In general, do Legal Benefit Corporation laws benefit or hurt the efforts of B-Lab’s Certified Benefit Corporations in terms of signaling a firm’s values?  Briefly explain for full credit.