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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
What do you understand by :
Noble gases
Match the formulas of the following of bases with their correct names.
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Names – (1) Potassium hydroxide (2) Zinc hydroxide (3) Aluminium hydroxide (4) Calcium hydroxide (5) Sodium hydroxide
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Arsenic
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Carbonic
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Sulphate
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The first letter of a symbol is always written as a ______ letter and the second letter as a ______ letter.
