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प्रश्न
The following table shows the electronic configuration of the elements W, X, Y, Z:
| Element | w | x | y | z |
| Electronic configurations |
2, 8, 1 | 2, 8, 7 | 2, 5 | 1 |
Answer the following questions based on the table above:
1) What type of Bond is formed between :
a) W and X
b) Y and Z
2) What is the formula of the compound formed between :
a) X and Z
b) W and X
उत्तर
1.a)Ionic bond is formed by transfer of one electron from element W to element X
1.b) Covalent bond is formed by sharing of electrons between elements Y and Z.
2.a) HCl
2.b) NaCl
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संबंधित प्रश्न
Calcium is an element with atomic number 20. Stating reason, answer each of the following questions:-
(i) Is calcium a metal or a non-metal?
(ii) Will its atomic radius be larger or smaller than that of potassium with atomic number 19?
(iii) Write the formula of its oxide.
How do the valency and the atomic size of the elements vary while going from left to right along a period in the modern periodic table?
Use the letters only written in the Periodic Table given below to answer the questions that Follow :
1) State the number of valence electrons in atom J.
2) Which element shown forms ions with a single negative charge?
3)Which metallic element is more reactive than R?
4) Which element has its electrons arranged in four shells?
How does the number of valence electrons vary on moving from left or right in the first period of the periodic table?
How does the number of valence electrons vary on moving from left or right in the second period of the periodic table?
Nitrogen (atomic number 7) and phosphorus (atomic number 15) belong to group 15 of the periodic table. Write the electronic configuration of these two elements. Which of these will be more electronegative? Why?
How does the electropositive character of elements change on going down in a group of the periodic table?
Name the non-metals present in period 2 and metals in period 3.
What is meant by periodicity of elements?
Select the correct answer from the options given below.
It is a metal in period 2 having electronic configuration 2, 1?
