The mass of 1000 protons is \(1.67 \times 10^{-21}\) grams according to the calculator display.
However, this value appears to be too small for the mass of 1000 protons. The mass of a single proton is approximately \(1.67 \times 10^{-27}\) grams.
To find the mass of 1000 protons, we can multiply the mass of one proton by 1000:
\[ \text{Mass of 1000 protons} = 1000 \times (1.67 \times 10^{-27}) = 1.67 \times 10^{-24} \text{ grams} \]
So, the correct mass of 1000 protons in scientific notation is:
\[ 1.67 \times 10^{-24} \text{ grams} \]
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