Answer:
Protons and Neutrons
Explanation:
The sum of number of protons and the number of neutrons is equal to the mass of an element. Mathematically, it can be given as :
M = P + N
Also, the atomic mass can be calculated by the sum of the element's isotopes as isotopes have slightly different mass numbers.
Hence, protons and neutrons add together to determine the atomic mass.

3. Conducts electricity in aqueous solution.
Answer:
heat flows from the object that has more thermal more energy to the object with less thermal energy
Answer:
please mark my answer brainliest
Explanation:
its carbon monoxide
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