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प्रश्न
Why do `""_17^35"CI"` and `""_17^37"CI"` have the same chemical properties? In what respect do these atoms differ?
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उत्तर
Only electrons take part in chemical reactions. Chemical properties depend on the electronic configuration. Isotopes of the element Cl `""_17^35"CI"` and `""_17^37"CI"` have the same atomic number, and hence, the same configuration. So, they have the same chemical properties. These differ only in physical contents and weights because neutrons contribute to the mass of an atom. `""_17^35"CI"` and `""_17^37"CI"` have different number of neutrons 18 and 20, respectively.
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संबंधित प्रश्न
Match the atomic number 4, 8, 14, 15 and 19 with each of the following:
(a) A solid non-metal of valelncy 3.
(b) A gas of valency 2.
(c) A metal of valency 1.
(d) A non-metal of valency 4
Among the following compounds identify the compound that has all three bonds (ionic, covalent and coordinate bond).
Name the following:
An element having valency 'zero'
Give reason
`""_17^35"CI"` and `""_17^37"CI"` do not differ in their chemical reactions.
Complete the following table relating to the atomic structure of some elements.
|
Element Symbol |
Atomic Number |
Mass Number |
Numbers of neutrons |
Number of Electrons |
Number of Protons |
|
Li |
3 |
6 |
|
|
|
|
Cl |
17 |
|
20 |
|
|
|
Na |
|
|
12 |
|
11 |
|
Al |
|
27 |
|
|
13 |
|
S |
|
32 |
16 |
|
|
Draw orbit structure diagram of sodium chloride (NaCl).
Identify the following reaction as either oxidation or reduction:
K - e- → K+
The element that would form cation due to the loss of electrons during the chemical reaction is ______.
______ is the only noble gas that does not have eight electrons in its valence shell.
Elements A, B and C have atomic number 17, 19 and 10 respectively.
State which one is chemically inert.
