We can say an atom is electrically neutral if both electron (for electric charge) and proton (for positive charge) have the exact same amount
Since the number are needed in some amount to be considered stable (*2-1st level<span>-need 8 for valence level) , </span><span> The atom that has 7 protons and 7 electrons would be considered enough</span>
Work is done when a force is applid to an object in motion. It is calculated by multiplying the amount force applied to the object and the distance the object travels.
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Work = force x distance
</span><span>Work = 2 N x 20 m
</span><span>Work = 40 Nm
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Thus, the answer is the 4th option which is 40 Nm.</span>
Answer: Boiling and Evaporation: Evaporation is the change of a substance from a liquid to a gas. Boiling is the change of a liquid to a vapor, or gas, throughout the liquid.
Explanation: Boiling and Evaporation: Evaporation is the change of a substance from a liquid to a gas. Boiling is the change of a liquid to a vapor, or gas, throughout the liquid.