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प्रश्न
From the standpoint of atomic structure, what determines which elements will be the first and which the last in a period of the periodic table?
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उत्तर
- The periodic table is based on the atomic number of an element.
- Furthermore, the valence electrons determine their position in the group.
- Elements with one valence electron are classified as the first group, elements with two valence electrons as the second group, and vice versa.
- An element with 8 valence electrons belongs to the Periodic Table's last group (18th group) (excluding He).
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संबंधित प्रश्न
Compare and contrast the arrangement of elements in Mendeleev’s periodic Table and the Modern Periodic Table.
What is meant by a group, in a periodic table?
How would the tendency to gain electrons change on moving from left to right in a period of the periodic table?
Name the type of elements which have two electrons in the outermost orbit.
What is the main characteristic of the last element in each period of the periodic table?
Find the odd one out and give its explanation.
p-block is composed of groups 1 and 2.
Elements in the modern periodic table are arranged in ______groups and______ periods.
______ group elements are called alkaline earth metals.
State the group and period, of the element having three shells with three electrons in valence shell.
