Dina computed the mass of 1,000 protons in grams. The calculator displayed the number 1.67E−21. What is the mass of 1,000 protons in scientific notation?

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

Alberto added two very small numbers using a calculator. The calculator displayed the number 6.13E - 14. What is this number in scientific notation? (1 point)

To express the mass of 1,000 protons in scientific notation, we can start by converting the given number, 1.67E−21, into a standard scientific notation format.

The given number, 1.67E−21, is already in scientific notation form. In scientific notation, the base number is multiplied by a power of 10. In this case, the base number is 1.67 and the exponent is −21.

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

To find the mass of 1,000 protons in scientific notation, we need to convert the given number into scientific notation.

The number 1.67E−21 is already in scientific notation. The "E-21" part indicates that we need to move the decimal point 21 places to the left to get the actual value.

So, the mass of 1,000 protons in scientific notation is 1.67E−21 grams.