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महाराष्ट्र राज्य शिक्षण मंडळएस.एस.सी (इंग्रजी माध्यम) इयत्ता १० वी

According to Mendeleev’s periodic law properties of elements are ______. - Science and Technology 1

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प्रश्न

According to Mendeleev’s periodic law properties of elements are ______.

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उत्तर

According to Mendeleev’s periodic law properties of elements are a periodic function of their atomic masses.

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पाठ 2: Periodic Classication of Element - Complete the incomplete sentence

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एससीईआरटी महाराष्ट्र Science and Technology 1 [English] 10 Standard SSC
पाठ 2 Periodic Classication of Element
Complete the incomplete sentence | Q 2

व्हिडिओ ट्यूटोरियलVIEW ALL [3]

संबंधित प्रश्‍न

 Use Mendeleev’s Periodic Table to predict the formulae for the oxides of the following elements:
K, C, Al, Si, Ba.


Name three elements with filled 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?


Element X forms a chloride with the formula XCl2, which is a solid with a high melting point. X would most likely be in the same group of the Periodic Table as


State any three demerits of Mendeleev’s periodic table.


On what basis elements are arranged in periodi table now?


 On what basis did mandeleev arrange the elements in his periodic table?


State whether the following statement is true of false:

According to Mendeleev's periodic law, the properties of elements are a periodic function of their atomic numbers.


What were the two criteria used by Mendeleev to classify the elements in his periodic table?


State Mendeleev's periodic law.


What chemical properties of elements were used by Mendeleev in creating his periodic table?


Why is atomic number considered to be a more appropriate parameter than atomic mass for the classification of elements in a periodic table? How does the metallic character of elements vary as we move (i) from left to right in a period, and (ii) top to bottom in a group in the modern periodic table? Give reasons to justify your answers.

 

 


Explain in brief how Mendel interpreted his results to show that the traits may be dominant or recessive.


Write the merits of Mendeleev’s periodic table.


Mendeleev's contributions to the concept of a periodic table laid the foundation for the Modern Periodic Table. Give reasons.


State Mendeleev's periodic law.


Use Mendeleev's Periodic Table to predict the formula of hydrides of carbon and silicon.


Name an element whose properties were predicted on the basis of its position in Mendeleev's periodic table.


Name two elements whose atomic weights were corrected on the basis of their positions in Mendeleev's periodic table.


How many elements were known at the time of Mendeleev's classification of elements?


Answer the following question:

Name two elements having a single electron in their outermost shell. 


How did Mendeleev arrange the elements in the periodic table?


How did Mendeleev's arrangement of elements correlate with the periodicity of the properties of elements?


While designing the periodic table, Mendeleev considered the chemical and physical properties of the elements.


On which basis Mendeleev organised periodic law?


What physical and chemical properties of elements did Mendeleev consider in compiling the periodic table?


An element has 12 protons. The group and period to which this element belongs is ______


Eka-aluminium and Eka-silicon are known as ______ 


Which of the following statement (s) about the Modern Periodic Table are incorrect

  1. The elements in the Modern Periodic Table are arranged on the basis of their decreasing atomic number
  2. The elements in the Modern Periodic Table are arranged on the basis of their increasing atomic masses
  3. Isotopes are placed in adjoining group (s) in the Periodic Table
  4. The elements in the Modern Periodic Table are arranged on the basis of their increasing atomic number

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.


List the features of Mendeleev’s Periodic Table.


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