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प्रश्न
Name the particle or particles you would expect to find in :
The orbit of an atom
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उत्तर
The orbit of an atom : electrons
APPEARS IN
संबंधित प्रश्न
TRUE \ FALSE
Neils Bohr gave the theory to explain the arrangement of protons in an atom.
ANSWER IN DETAIL
Enlist the features of Bohr’s model of an atom. How did he correct the Rutherford’s model ?
Write the names of `"Ca"("NO"_3)_2` compounds :
Write the names of `"FeS"` compounds :
Define: Relative atomic mass
Write electronic configuration of oxygen, fluorine, sodium, silicon, argon.
Define: An Atom:
How many times is a proton heavier than an electron?
Dalton's atomic theory says that atoms are indivisible. Is this statement still valid ? Give reasons for your answer.
An atom of element E contains 3 protons, 3 electrons and 4 neutrons :
(a) What is its atomic number?
(b) What is its mass number?
(c) Write the electronic configuration of the element E.
(d) State whether element E is a metal or non-metal. Why?
(e) What type of ion, cation or anion, will be formed by an atom of element E? Why
(f) Write the symbol of the ion formed by an atom of element E.
(g) What could element X be?
Find the mass of 2 moles of nitrogen atoms.
Elements X and Y have 1 and 7 electrons in their outermost shell respectively.
Which element will lose electron?
Elements X and Y have 1 and 7 electrons in their outermost shell respectively.
Which element will gain electron?
The electronic structure [configuration] of fluorine can be written as 2, 7. In a similar way give the electronic configuration of phosphorus
A compound containing one atom of carbon and two atoms of oxygen is ______.
Define the following term with an example.
Element
K: Potassium:: C: ______.
Give the salient features of “Modern atomic theory”.
Atomic models have been improved over the years. Arrange the following atomic models in the order of their chronological order
- Rutherford’s atomic model
- Thomson’s atomic model
- Bohr’s atomic model
A small block slides down on a smooth inclined plane, starting from rest at time t = 0. Let Sn be the distance travelled by the block in the interval t = n – 1 to t = n. Then, the ratio `S_n/(S_(n + 1))` is ______.
