The unit of measurement
For a measurement to be useful, it must contain both a number and a unit.
the unit of mesurement
a unit of measurement along with the number
We need to know the "unit of measure" ( ie metre, gram etc) and the number of units.ie 10 (No of Units) Metre (Unit of measure)
Intervals and units of measurement
Units of measurement, Titles.
a number and a unit
The measurement units and the degree of precision (significant figures or margin of error).
15 Electrons. A charge-less (neutral) atom must have an equal number of both protons and electrons, otherwise it becomes an ion.
Probability is a numerical value and there must bea number, not just include one.
Yes, you MUST.