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प्रश्न
An element A has 2 electrons in its fourth shell. State:
position in the periodic table
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उत्तर
Position in the periodic table is group 2 period 4
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संबंधित प्रश्न
How does Chemical reactivity of elements change on going from left to right in a period of the periodic table?
Give example in support of your answer.
Why are noble gases placed in a separate group?
Name two elements you would expect to show chemical reactions similar to calcium. What is the basis of your choice?
An element X belong to 4th period and 17th group, state.
no of valence electrons in it
How does the number of:
valence electrons and
On the basis of electronic configuration, how will you identify the first and the last element of a period?
Arrange the following as per instruction given in the bracket.
Mg, Cl, Na, S, Si (decreasing order of atomic size)
What is meant by a Group in the Periodic Table?
Name the period which is the shortest period of the periodic table.
Give a reason for the following:
A transition from metallic to non-metallic elements is seen on moving from left to right in a period of the periodic table.
