NATS 1510 Lecture Notes - Lecture 2: Scientific Notation, Decimal Mark

• School: York University
• Department: Natural Science
• Course: NATS 1510
• Professor: Reza Mani

Document Summary

Scientific not a tio n has only one non- zero digit befor e the deci m al. Put a deci m al plac e after the l digit and us e your coun t as the expo n e n t. Scientific not a tio n always has only one digit befor e the deci m al plac e. 0 5 can be writt e n as 5. 06 0 0 5 x 1 0. Exa m pl e s for digits less tha n 1: count the nu m b e r of zeros after the deci m al plac e a add one. Avoga dr o"s nu m b e r is 6. 02 3x 1 0. 23: it is the number of molecules per mole of a substance (a mole is a quantity of a substance containing 6. 023x1023 number of molecules.