Engineering
Chemistry
Alkali Metals and Properties
Question
The metal used for making X-ray tube window is:
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Solution
The X-ray tube window must be transparent to X-rays yet strong enough to maintain vacuum. Beryllium (Be) has low atomic number (Z=4), allowing high X-ray transmission, and sufficient mechanical strength. Other metals like sodium (Na), calcium (Ca), or magnesium (Mg) have higher Z, causing more X-ray absorption, or are too reactive/soft.
Final Answer: Be