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प्रश्न
State which element exists in the highest percentage in earth’s crust.
उत्तर
Oxygen (O) – 46.1%
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संबंधित प्रश्न
The scientist who proposed the first letter (or first letter and another letter) of the Latin or English name of
an element as its symbol, was :
A student wants to have 3.011 × 1023 atoms each of magnesium and carbon elements. For this purpose, he will have to weigh :
Give the symbol of the following element:
Platinum
Give the symbol of the following element:
Bromine [bromide]
State the type of element for the following:
Oxygen
Write the radical of the following valency:
Carbonate
Give a reason – Magnesium [2, 8, 2] has valency 2+.
State the valency of the following metallic element and write symbol with the valency
Zinc
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).
Plumbite
Which of the following would weigh the highest?
