Advertisements
Advertisements
प्रश्न
State which element exists in the highest percentage in atmosphere.
Advertisements
उत्तर
Nitrogen (N) — 78%
APPEARS IN
संबंधित प्रश्न
Match the symbols of non-metallic elements with their correct combining power or capacity.
(a) O
(b) S
(c) Cl
Combining power or capacity A : 3; B : 2; C : 1. (negative valencies)
Give the symbol of the following element:
Sodium
State the type of element for the following:
Xenon
Write the radical of the following valency:
Hydroxide
Give the formula of the following gas:
Nitrogen dioxide
Give the formula of the following gas:
Nitrogen
State the valency of the following metallic element and write symbol with the valency
Zinc
Give the qualitative and quantitative meaning of the term ‘symbol’.
______ of some elements are derived from Latin or Greek names of the elements.
The first letter of a symbol is always written as a ______ letter and the second letter as a ______ letter.
