Question: There are _____ naturally occurring elements.

Answer: 92

Question: Which one of the following has negligible mass?

Answer: electron

Question: The number of protons in an uncharged atom _____.

Answer: equals the number of electrons

Question: Consider a hypothetical atom with an atomic number of 4 and a net electronic charge of +1. How many neutrons does this atom have?

Answer: The answer cannot be determined from the information provided.

Question: Isotopes of an element will always differ in _____.

Answer: atomic mass