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प्रश्न
Name two elements in Inert gas.
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उत्तर
Neon and Argon.
संबंधित प्रश्न
What is the number of valence electrons in the atoms of first elements in a period?
On the basis of electronic configuration, how will you identify chemically similar elements?
Helium and neon are unreactive gases. What, if anything, do their atoms have in common?
Name two elements in halogens.
State its position in the periodic table?
Fill in the blank:
The horizontal rows in the periodic table are called _____________.
Group 13 to 18 : p block : : _______ : d block
Write scientific reason.
Lithium and sodium are included in the same group in periodic table.
Three elements A, B and C have 3, 4 and 2 electrons respectively in their outermost shell. Give the group number to which they belong in the Modern Periodic Table. Also, give their valencies.
An element has 2 electrons in its N shell.
Is it a metal or a non-metal?
