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?(1 point)
1.67 ×
grams
To express 1.67E-21 in scientific notation, we need to move the decimal point to the right so that the resulting number is between 1 and 10.
Starting with 1.67E-21, we move the decimal point 21 places to the right:
1.67E-21 = 0.0000000000000000000167
Since the resulting number is less than 1, we multiply it by 10 to the power of -21 to compensate for moving the decimal point:
0.0000000000000000000167 = 1.67 × 10^(-21)
Therefore, the mass of 1,000 protons in scientific notation is 1.67 × 10^(-21) grams.
To express a number in scientific notation, we need to move the decimal point so that there is only one non-zero digit to the left of the decimal point.
In this case, we can move the decimal point two places to the right to get 1.67.
So, the mass of 1,000 protons in scientific notation is 1.67 × 10^-21 grams.
To express the mass of 1,000 protons in scientific notation, we start with the given number: 1.67E−21.
Scientific notation is a way of writing numbers that are very large or very small. It consists of a number between 1 and 10, multiplied by 10 raised to a power, represented by "E" (exponent).
In this case, the given number is already in scientific notation, where the base number is 1.67 and the exponent is -21 (negative because it is a very small number).
To express the mass of 1,000 protons in grams using scientific notation, we write it as 1.67 × 10^-21 grams.