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प्रश्न
Mass of one atom of oxygen is
विकल्प
`16/(6.023 xx 10^23)"g"`
`32/(6.23 xx 10^23) "g"`
`1/(6.023 xx 10^23)"g"`
8u
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उत्तर
`16/(6.023 xx 10^23)"g"`
Mass of one atom of oxygen
= `"Atomic mass"/"N"`
`16/(6.023 xx 10^23)"g"`
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संबंधित प्रश्न
The anion of an element has ______.
Give the symbol and the number of atoms of the following elements present in carbon dioxide.
Match the symbols of metallic elements – with their correct combining power or capacity.
(a) K
(b) Zn
(c) Al
(d) Na
(e) Ca
Combining power or capacity – A : 3 ; B : 2 ; C : 1. (positive valencies)
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:
Arsenic
State the type of element for the following:
Oxygen
State the type of element for the following:
Neon
State the type of element for the following:
Xenon
Write the chemical formula of the following:
Sodium bromide
Define Alchemy.
