Question

here we will look at some guidelines to follow in determining whether or not digits in a measurement are significant. all ________ digits are always significant. the zeros are a little more complex. we will use the terms “leading,” “trailing,” and “captive” for the zeros and will consider how to deal with them. starting with the first ______ digit on the left, count this digit and all remaining digits to the right. this is the number of significant figures in the measurement unless the last digit is a ______ zero lying to the left of where the decimal point would be located. captive zeros result from ______ and are therefore always significant. ______ zeros, however, are never significant—they merely tell us where the decimal point is located. we could use exponential notation and express the number as ______; then the number contains all of the significant figures, and locates the decimal point. the number of significant figures is uncertain in a number that ends with a zero to the left of the decimal point location. the ambiguity can be resolved with the use of ______. in cases where only the decimal - formatted number is available, it is prudent to assume that all trailing zeros are ________.

Explanation:

Non - zero digits are always significant. Start counting significant figures from the first non - zero digit on the left. Trailing zeros to the left of the decimal point location may be ambiguous. Captive zeros (between non - zero digits) are significant. Leading zeros are not significant. Exponential notation can resolve ambiguity in significant figures for numbers with trailing zeros to the left of the decimal point. When only decimal - formatted number is available, assume trailing zeros are significant.

Answer:

non - zero; non - zero; trailing; between non - zero digits; leading; exponential notation; significant