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प्रश्न
The electronic configuration of an element T is 2, 8, 8, 1.
What is the group number of T?
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उत्तर
Group 1 since the valence electron is 1.
संबंधित प्रश्न
where should hydrogen be placed in the modern periodic table? Give reason for your answer.
What is the fundamental difference in the electron configurations between the group 1 and group 2 elements?
What happens to the number of valence electrons in the atoms of elements as we go down in a group of the periodic table?
What is the main characteristic of the last element in each period of the periodic table?
Name an element of group 18 which can form compounds.
Give the symbol and valency of the following element and radical.
Sodium
State the number of elements in Period 1 of the Periodic Table.
Find the odd one out and give its explanation.
The elements A, B, C, D and E have atomic number 9, 11, 17, 12 and 13 respectively. Which pair of elements belong to the same group?
Name the non-metals in the first twenty elements.
