Hydrogen, atomic number 1, has 3 isotopes, 1H, 2H, 3H. 1H is comprised of one proton, one neutron and one electron.
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Q1: An oxygen atom has _ surrounding a
Q3: Q4: Radioactive _ is commonly used to treat Q5: A trace element is one found in Q6: Four elements, including _, make up more Q7: Atoms with atomic numbers between lithium and Q13: Acid precipitation can have a pH as Q15: Proteins in thermophiles must be stabilized by Q17: The substance O2is considered to be _. Q18: Diluted acetic acid, CH3COOH, is commonly called![]()
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