The question doesn't make any sense. If you want to know what the distance between pixels is called, it is dot pitch. If you are asking what the actual distance is, that depends on the monitor. The manufacturer would have this information.
dot pitch
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The distance between two pixels is typically measured in terms of pixels or in units like millimeters or inches on a display screen or printout. It indicates the separation between the centers of the two pixels.
pixels
pixels.
dot pitch
Dot pitch is the distance between each triad of pixels in a display. Resolution is the number of pixels in the horizontal and vertical dimension. Examples would be a 24 inch monitor with a 1920 x 1080 resolution has a dot pitch of 277 micrometers.
1024 is the width of a monitor in pixels and 768 is height ofa monitor in pixels(It show the resolution)
Refresh Rate
Yes, the number of pixels on a monitor is known as its resolution.
The widest number of pixels that can be displayed on a standard high-definition monitor is 1920 pixels.
A VGA monitor (video graphics array) typically displays pictures in 640 x 480 pixels, or an even smaller 320 x 200 pixels. SVGA (super video graphics array) monitors are simply a higher resolution monitor, and display pictures at 800 x 600 pixels.