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प्रश्न
Out of ozone, phosphorus, sulphur and krypton, the elements having the lowest and highest atomicities are respectively :
विकल्प
sulphur and krypton
krypton and ozone
phosphorus and sulphur
krypton and sulphur
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उत्तर
krypton and sulphur
Out of ozone, phosphorus, sulphur and krypton, krypton has the lowest atomicity and sulphur the highest .
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संबंधित प्रश्न
Write the names and symbols of the first twenty elements that you have studied in class VI & VII.
Define: Elements-
Name the element used as a standard for atomic mass scale.
Two elements X and Y have valencies of 5 and 3, and 3 and 2, respectively. The elements X and Y are most likely to be respectively :
Give the symbol and the number of atoms of the following elements present in sodium chloride.
State the type of element for the following:
Iodine
Give the qualitative and quantitative meaning of the term ‘symbol’.
What does the symbol '(s)' present in a chemical equation, mean?
Describe the different ways in which we can write the symbols of elements. Give appropriate examples.
Write the symbols for the following elements.
- Oxygen
- Gold
- Calcium
- Cadmium
- Iron
