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प्रश्न
State the number of elements in Period 2 of the Periodic Table.
How many elements are there in Period 2.
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उत्तर
Period 2 is a short period that has 8 elements.
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संबंधित प्रश्न
Compare and contrast the arrangement of elements in Mendeleev’s periodic Table and the Modern Periodic Table.
Give two example of group 1 elements.
Explain why, the first period of the periodic table has only two elements whereas second period has eight elements
Consider the following elements:
20Ca, 8O, 18Ar, 16S, 4Be, 2He
Which of the above elements would you expect to be:
(i) very stable?
(ii) in group 2 of the periodic table?
(iii) in group 16 of the periodic table?
Name two elements in each case: Lanthanides
Give the chemical formula of sodium bicarbonate
Give the chemical formula of magnesium nitrate
What are the periods in a periodic table?
Find the odd one out and give its explanation.
What is the symbol of the element Tungsten?
