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प्रश्न
An element with the atomic number 19 will most likely combine chemically with the element whose atomic number is
विकल्प
17
11
18
20
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उत्तर
An element with the atomic number 19 will most likely combine chemically with the element whose atomic number is 17.
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संबंधित प्रश्न
How do atoms attain noble gas configuration?
Among the following compounds identify the compound that has all three bonds (ionic, covalent and coordinate bond).
The following table shows the electronic configuration of the elements W, X, Y, Z:
|
Element |
W |
X |
Y |
Z |
|
Electronic |
2, 8, 1 |
2, 8, 7 |
2, 5 |
1 |
Answer the following question based on the table above:
What is the formula of the compound formed between W and X.
State the following is a reduction reaction or oxidation reaction.
\[\ce{A^3+ + e- -> A^2+}\]
Name the following:
Two atoms having the same number of protons and electrons but different number of neutrons.
Give the orbital diagram of the following:
Nitrogen
Copy and complete the following table relating to the atomic structure of some elements:
| Element | Atomic Number | Mass Number | Number of protons | Number of Neutrons | Number of Electrons |
| Beryllium | 4 | 9 | |||
| Fluorine | 9 | 10 | |||
| Sodium | 12 | 11 | |||
| Aluminium | 27 | 13 | |||
| Phosphorus | 31 | 15 |
How do atoms attain Noble gas electronic configuration?
Write the basic concept of Kossel – Lewis theory.
Complete the following table:
| Atoms | Atomic number | Electron distribution | |
| 1. | O | 8 | ______ |
| 2. | N | ______ | ______ |
| 3. | ______ | 17 | ______ |
| 4. | ______ | ______ | 2,8,2 |
