There are so many atoms in a meter that it would be impossible to count them all perfectly. It is also necessary to know what atom you where talking about if you possibly want a "good" answer.
1.5 meter
The distance of 10dm, or 10 decimeters, is equal to one meter.
1 meter is a measure of length or distance. 1 gram is the measure of mass or weight. That cannot go together.
1000 meters is equal to a distance of 1 kilometer.
By unit of length and distance and conversion ,we can say that 1 km=1000 m
By unit of length and distance and conversion ,we can say that 1 m=100 cm
A metre is a unit of distance. A cent is a unit of area. The two units are therefore incompatible.
1x1 meter is a square meter.
You have the wrong understanding of millimeters. A Newton.meter is a unit of work, it is called the Joule in the SI system. A millimeter is a distance, equal to 1/1000 of a meter.
1000 meter
100 centimeters equal 1 meter.
75 cms is equal to 0.75 meter.