Question : What is the common characteristic of the elements of the same group in the periodic table?
Option 1: Electrons in the outermost shell
Option 2: Total number of electrons
Option 3: Total number of protons
Option 4: Atomic weight
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Correct Answer: Electrons in the outermost shell
Solution : The correct option is Electrons in the outermost shell .
Elements of the same group have the same number of valence electrons, or electrons, in an atom's outermost shell. All elements in Group 1 (alkali metals), for example, have one valence electron, whereas in Group 18 (noble gases) have eight (excluding helium, which has two).
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Question : In which group are the non-metal elements placed in a vertical column on the right side of the periodic table?
Question : Electrons in the highest energy level of an atom are called ________.
Question : When did Dmitri Mendeleev invent the periodic table, ordering the symbols of the chemical elements according to their atomic weights?
Question : Hydrogen resembles the properties of which two groups of the periodic table?
Question : In which year did AEB de Chancourtois organise the elements by atomic weight by graphing the elements around a cylinder with a circumference of 16 units, corresponding to the weight of oxygen (O)?
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