Which of the following is correct for the element with atomic number 20?
Definitions:
Rounded
The process of adjusting a numerical figure to its nearest specified place value, such as to the nearest whole number.
Significant Figures
The number of digits in a value that contribute to its precision, typically starting with the first non-zero digit.
Percent
A mathematical term that represents a number as a fraction of 100.
Cent
A unit of currency used in several nations, equivalent to 1/100th of a dollar, euro, or similar decimal-based currency.
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