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प्रश्न
State which element exists in the highest percentage in atmosphere.
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उत्तर
Nitrogen (N) — 78%
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संबंधित प्रश्न
Name the elements represented by the following symbols :
Hg, Pb, Au, Ag, Sn
Explain the significance of the symbol H.
Give the names and symbols of the first twenty elements of the periodic table.
Give the symbol of the following element:
Neon
State the type of element for the following:
Fluorine
State the type of element for the following:
Lead
Write the radical of the following valency:
Carbonate
Write the radical of the following valency:
Phosphate
Certain metal exhibit variable valencies which include valencies: 1+, 2+, 3+, and 4+.
State the variable valency of the following metal.
Silver
write symbol with the variable valency
State whether the following ion or radical given below of a non-metallic element exhibits valency: 1–, 2– or 3–. (write the ion or radical with the correct valency).
Nitride
