Question

give short note on modern periodic law of Henry Moseley

Answer 1

Heya!!Here is your answer friend ⤵⤵
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⏪The Modern Periodic Table was designed by Henry Moseley.

⏪It had 7 periods and 18 groups .

⏪All the limitations of mendeleev's periodic table were overcome by the modern periodic table.

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➡MODERN PERIODIC LAW: IT STATES THAT THE PROPERTIES OF AN ELEMENT ARE A PERIODIC FUNCTION OF THEIR ATOMIC NUMBER.

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⏪Why Atomic Number is better choice than the atomic mass ?

➡Atomic number is easy to learn as compared to atomic masses .

➡each element has a different atomic number .

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Hope it helps you ✌✌

Answer 2

Answer:

Henry Moseley's work on X-ray spectroscopic studies of many elements showed that thencharacteristic frequency of X-ray emitted by an element was related to atomic number, Z, of the element and not the atomic mass. Thus atomic number was considered to be the fundamental property of atom which modified Mendeleev's periodic law. This is

called Modern periodic law.