Only if the number has an integer part.
That is correct.
When they are between two non-zero digits or if there are after the decimal point. For example, the 0 is not significant in 1340 but it is significant in 1304 or 1340.0
In the number 50.000, there are five significant digits. The zeros to the right of the decimal point are considered significant because they are trailing zeros following a decimal point. Trailing zeros in this context are significant as they indicate precision to the hundredths place.
No, a leading zero is NEVER a significant digit.
460. (the period/decimal point is necessary; otherwise 460 would be considered two significant figures)
No. 0.0000123 has three significant digits.
True
That is correct.
When they are between two non-zero digits or if there are after the decimal point. For example, the 0 is not significant in 1340 but it is significant in 1304 or 1340.0
No, they are not.
Zero is considered a significant digit when it is to the left or the right of the decimal point. It is also a significant digit when it follows a non-zero digit or when it is between two digits.
In the number 50.000, there are five significant digits. The zeros to the right of the decimal point are considered significant because they are trailing zeros following a decimal point. Trailing zeros in this context are significant as they indicate precision to the hundredths place.
There are 3 significant digits in 4.00 and 2 significant digits in 7.0. Zeros between non-zero digits or at the end of a number after a decimal point are considered significant.
No, a leading zero is NEVER a significant digit.
All digits between the first non-zero digit and the last non-zero digits are significant. Some would argue that trailing 0s are significant since they are an indication of the precision of the number.
460. (the period/decimal point is necessary; otherwise 460 would be considered two significant figures)
The two digits after the decimal point.