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प्रश्न
State the number of elements in Period 1 of the Periodic Table.
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उत्तर
Period 1 is the shortest period has 2 elements
संबंधित प्रश्न
Consider the following elements:
Na, Ca, Al, K, Mg, Li
Which of these elements belong to the same group of the periodic table?
What is the number of valence electrons in the atoms of first elements in a period?
State whether the following statement is true or false:
On going down in a group of the periodic table, the number of valence electrons increases.
Explain why all the elements of a group have similar chemical properties.
Name two elements in Inert gas.
How does number of (i) valence electrons (ii) valency; vary on moving from left to right in the second period of a periodic table?
Distinguish between:
s-block - p-block
Which of the following elements does not lose an electron easily?
Which of the following elements will form an acidic oxide?
Match the atomic number with the following:
An element of group 2.
