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Yes hydrogen is a non metal
Answer:5.4 g / 13.6 g *100
Explanation:Its is the correct answer
Iodine 131 is a radioisotope with a very short half-life of 8.02 days, making it highly radioactive. Frequently used in small doses in thyroid cancers therapies, it is also one of the most feared fission products when accidentally released into the environment. Radiotoxicity of iodine 131.
The metalloid that has three valence electrons is Boron~