Question : In which element group of the periodic table are fluorine, chlorine, bromine and iodine included?
Option 1: Actinides
Option 2: Chalcogen
Option 3: Lanthanides
Option 4: Halogens
Correct Answer: Halogens
Solution : The correct answer is Halogens.
Group 17 in the periodic table is known as the Halogen group, and it contains five natural halogen elements: fluorine, chlorine, bromine, iodine and astatine. the atomic number for the following is_
F: 9
Cl : 17
Br: 35
I : 53
At: 85
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Question : Which of the following statements is correct?
Question : Identify an anomaly element that belongs to both Group 1 and Group 17.
Question : Which chemical element of Group 18 of the periodic table is produced by the natural radioactive decay of Uranium in soils and rocks?
Question : Which atomic number element of the periodic table is named after Alfred Nobel, the inventor of dynamite and the founder of the Nobel Prize?
Question : Which radioactive element with atomic number 43 in the modern periodic table is unstable, and the half-lives of all its isotopes are relatively short, from 4.2 million years to 5.0 s?
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