Proton plus neutron is the correct answer. Protons and neutrons have a mass of 1 and electrons have a mass of 0. So in order to find the mass of an atom you need to add the number of protons and the number of neutrons.
Answer:
water is made of 2 hydrogen atoms bonded by 1 oxygen atom
Explanation:
Answer:
if the pH of a solution is 2.0 that means the solution would be acidic.
Explanation:
Answer:
urban heat island
Explanation:
occurs when a city experiences much warmer temperatures than nearby rural areas.
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