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प्रश्न
Name the type of elements which have two electrons in the outermost orbit.
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उत्तर
Alkaline Earth metals
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संबंधित प्रश्न
The atomic numbers of four elements P, Q, R and S are 6, 8, 14 and 16 respectively. Out of these, the element known as metalloid is:
(a) P
(b) Q
(c) R
(d) S
What is the major characteristic of the first elements in the periods of the periodic table? What is the general name of such elements?
What is the main characteristic of the last elements in the periods of the periodic table? What is the general name of such elements?
An element barium has the atomic number 56. Look up its position in the periodic table and answer the following question.
Is it larger or smaller than caesium (Cs)?
What is the number of elements in the 1st period?
How does number of (i) valence electrons (ii) valency; vary on moving from left to right in the second period of a periodic table?
Right or wrong sentence.
The modern periodic table has 1 to 7 periods.
Elements in the modern periodic table are arranged in ______groups and______ periods.
Noble gases belong to______ group of the periodic table.
Which one of the following elements exhibit maximum number of valence electrons?
