X-rays are a div ice that are used to see injured or important things like if you child of dog swallowed it. They kill about 10,000 braincells in you body.
Because the sound of X in English is that of a vowel sound. What this means is that you pronounce it "EX", with the sound of the "E" first. Ergo, one says an "ex". It's actually logical in this case...
No, they are a more energetic type of electromagnetic radiation found beyond the blue end of the visible spectrum. Infrared rays are also electromagnetic but have much less energy and longer...
We might consider gamma rays similar to X-rays. Both are at the top end of the electromagnetic spectrum, with gamma rays generally a bit higher in frequency (though there is a bit of overlap). Some...