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

Right or wrong sentence. Nanometer unit is used to measure atomic radius.

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प्रश्न

Right or wrong sentence.

Nanometer unit is used to measure atomic radius.

Right or wrong sentence.

Nanometers use these units to measure atoms.

पर्याय

  • Right

  • Wrong

MCQ
चूक किंवा बरोबर
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उत्तर

The given sentence is wrong.

Explanation:

Atomic radius is normally reported in picometers (pm) or ångströms (Å) because typical atomic sizes are on the order of 10–300 pm (0.01 - 0.3 nm); 1 pm = 10−12 m. While you can convert to nanometres, `±/"A"` are the standard, more convenient units.

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  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 2: Periodic Classication of Element - Right or Wrong sentence

संबंधित प्रश्‍न

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

Na, K, Li (Increasing atomic size)


Arrange the elements of second and third periods in increasing order of their atomic size (excluding noble gases).


Why is the size of neon greater than fluorine?


Give reasons for the following:

The size of the anion is greater than the size of the parent atom.


Arrange the following in order of increasing radii:

CI- , CI 


Write the name and symbol of the element from the description.

The noble gas with the smallest atomic radius.


Give scientific reasons for the following:

Atomic radius goes on decreasing while going from left to right in a period.


Select the correct answer
Atomic radii of fluorine and neon in angstrom unit are


Within a group, where would you expect to find the element with the largest atomic size?

The size of an atom is indicated by its ______.


Right or wrong sentence.

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


Write an explanation.

Atomic radius


The electronic configuration of metal A is 2, 8, 18, 1.

The metal A when exposed to air and moisture forms B a green layered compound. A with con. H2 SO4 forms C and D along with water. D is a gaseous compound. Find A, B, C, and D.


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?


When an atom of iodine becomes an iodine ion (I) the radius will ______ 


Which of the following are the characteristics of isotopes of an element?

  1. Isotopes of an element have same atomic masses
  2. Isotopes of an element have same atomic number
  3.  Isotopes of an element show same physical properties
  4. Isotopes of an element show same chemical properties

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.


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