Dina computed the mass of 1,000 protons in grams. The calculator displayed the number 1.67E21. What is the mass of 1,000 protons in scientific notation??

1.67*___?

The mass of 1,000 protons in scientific notation is 1.67 x 10^21 grams.

To express the mass of 1,000 protons in scientific notation, we need to move the decimal point until we have a number between 1 and 10.

Starting with 1.67, we can move the decimal point to the left three places to obtain the number 1.67.

Therefore, the mass of 1,000 protons in scientific notation is 1.67 * 10^3.

To calculate the mass of 1,000 protons in scientific notation, we can use the given number 1.67E21.

The "E" in this notation represents "times 10 raised to the power of." So, 1.67E21 means 1.67 times 10 raised to the power of 21.

Since we are looking for the mass in grams, we simply need to write the number in the correct format.

Therefore, the mass of 1,000 protons in scientific notation is 1.67 x 10^21 grams.