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

Atomic radius is expressed in the unit ______.

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प्रश्न

Atomic radius is expressed in the unit ______.

पर्याय

  • nanometer

  • picometer

  • micrometer

  • millimeter

MCQ
रिकाम्या जागा भरा
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उत्तर

Atomic radius is expressed in the unit picometer.

Explanation:

Because atoms are extremely small, their atomic radii are measured using very small units of length. While nanometres (1 nm = 10−9m) are sometimes used, the picometre (1 pm = 10−12m) is the most standard and precise unit for expressing atomic size in chemistry.

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  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 2: Periodic Classication of Element - Choose the correct option. [पृष्ठ ४]

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एससीईआरटी महाराष्ट्र Science and Technology Part 1 [English] Standard 10 Maharashtra State Board
पाठ 2 Periodic Classication of Element
Choose the correct option. | Q 19. | पृष्ठ ४

संबंधित प्रश्‍न

Why is the size of neon greater than fluorine?


Why is the size of sodium is greater than magnesium?


Which is greater in size Fe2+ or Fe3+?


Fill in the blank:

On moving across a period from right to left in the periodic table, the atomic size of the atom ___________.


Give reason for the following:

Argon atom is bigger than chlorine atom. 


Arrange the following as per the instruction given in the bracket
Na, K, Li (Increasing atomic size)


The changes in the properties of elements on moving from left to right across a period of the Periodic Table. For the property, choose the correct answer. 

The atomic size:


On moving from left to right in a periodic table, the size of the atom ______.


The size of an atom is indicated by its ______.


_______ is the distance between the nucleus of the atom and its outermost shell.


Right or wrong sentence.

The size of an atom depends on the number of valence electrons.


Carbon belongs to the second period and Group 14. Silicon belongs to the third period and Group 14. If the atomic number of carbon is 6, the atomic number of silicon is ______


Which of the following is the correct order of size?


Which of the following gives the correct increasing order of the atomic radii of O, F, and N?


Elements have been arranged in the following sequence on the basis of their increasing atomic masses.

F, Na, Mg, Al, Si, P, S, Cl, Ar, K
  1.  Pick two sets of elements which have similar properties.
  2. The given sequence represents which law of classification of elements?

Atomic number of a few elements are given below
10, 20, 7, 14

  1. Identify the elements
  2. Identify the Group number of these elements in the Periodic Table
  3. Identify the Periods of these elements in the Periodic Table
  4. What would be the electronic configuration for each of these elements?
  5. Determine the valency of these elements

  1. In below ladder symbols of elements are jumbled up. Rearrange these symbols of elements in the increasing order of their atomic number in the Periodic Table.
  2. Arrange them in the order of their group also.


Arrange the following as per the instruction given in the bracket:

Carbon, Fluorine, Beryllium (decreasing order of atomic size).


Give reason for the following:

The size of a Cl ion is greater than the size of a Cl atom.


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