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प्रश्न
Name the Russian chemist who said that the properties of elements are a periodic function of their atomic masses.
उत्तर
Dmitri Mendeleev was a Russian chemist who said that the properties of elements are a periodic function of their atomic masses.
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संबंधित प्रश्न
Name two elements that have two electrons in their outermost shells.
Lithium, sodium, potassium are all metals that react with water to liberate hydrogen gas. Is there any similarity in the atoms of these elements?
Helium is an unreactive gas and neon is a gas of extremely low reactivity. What, if anything, do their atoms have in common?
On what basis did mandeleev arrange the elements in his periodic table?
Write a short note.
Mendeleev’s periodic law.
The properties of eka-aluminum predicted by Mendeleev are the same as the properties of a later discovered elements: ______
In Mendeléev’s Periodic Table the elements were arranged in the increasing order of their atomic masses. However, cobalt with atomic mass of 58.93 amu was placed before nickel having an atomic mass of 58.71 amu. Give reason for the same.
Properties of the elements are given below. Where would you locate the following elements in the periodic table?
- A soft metal stored under kerosene
- An element with variable (more than one) valency stored under water.
- An element which is tetravalent and forms the basis of organic chemistry
- An element which is an inert gas with atomic number 2
- An element whose thin oxide layer is used to make other elements corrosion resistant by the process of “ anodising”
State Mendeleev’s Law of Periodicity.
Mendeleev's periodic table was based on ______.
