मराठी

Arrange the following in order of increasing radii: N, O, P Explain your choice.

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प्रश्न

Arrange the following in order of increasing radii:

N, O, P

Explain your choice.

टीपा लिहा
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उत्तर

O < N < P

Explanation:

N(7) = 2, 5; O(8) = 2, 6; P(15) = 2, 8, 5

Radius of oxygen < Radius of Nitrogen where as phosphorus has three shells.

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पाठ 1: Periodic Table, Periodic Properties and Variations of Properties - EXERCISE-1 [पृष्ठ १८]

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एस.पी. सिंह Concise Chemistry [English] Class 10 ICSE
पाठ 1 Periodic Table, Periodic Properties and Variations of Properties
EXERCISE-1 | Q 5. (i) (c) | पृष्ठ १८

संबंधित प्रश्‍न

Which is greater in size an atom or an anion?


Size of atom progressively becomes smaller when we move from sodium (Na) to chlorine (CI) in the third period of the periodic table?


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


Some elements and their atomic radii are given here. Arrange them in decreasing order of their atomic radii. Identify which of the above elements is the biggest atom and which is smallest?

Element K Na Rb Cs Li
Atomic radius (pm) 231 186 244 262 151

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?

An element X (atomic number 17) reacts with an element Y (atomic number 20) to form a divalent halide.

  1. Where in the periodic table are elements X and Y placed?
  2. Classify X and Y as metal (s), non-metal (s) or metalloid (s)
  3. What will be the nature of oxide of element Y? Identify the nature of bonding in the compound formed
  4. Draw the electron dot structure of the divalent halide

The diagram below shows part of the periodic table.

  1. Which elements would react together to form covalent compounds?
  2. Between the two elements W and Z, which will have a bigger atomic radius? Why?


Which one has the largest size?


Give reason for the following:

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


This question refers to the elements of the Periodic Table with atomic numbers from 3 to 18. Some of the elements are shown by letters, but the letters are not the usual symbols of the elements.

3 4 5 6 7 8 9 10
A B C D E F G H
11 12 13 14 15 16 17 18
I J K L M N O P

Which of these have least atomic size in period 3?


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