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प्रश्न
A certain particle ‘X’ has 17 protons, 18 electrons and 20 neutrons.
What is the atomic numebr of X ?
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उत्तर
What is the atomic numebr of X= 17
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संबंधित प्रश्न
Why is it not possible to see an atom with naked eyes?
Define:- Atom
Define: Relative atomic mass
Name two particles found inside the nucleus. What are they collectively called ?
What are orbits or shells ?
Name three non-metals/radicals which have valency -1, -2, and -3.
State Dalton’s atomic theory.
Name the particle or particles you would expect to find in :
The nucleus of an atom
Write the relation between nanometre and metre.
What is an atom ? How do atoms usually exist ?
For the symbols H, D and T, write the subatomic particles (protons, neutrons and electrons) found in each one of them.
Compare:
Chlorine atom and chloride ion, with respect to
Atomic structure
Electrical state
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
State true or false. If false, correct the statement.
The basic unit of an element is molecule.
In the nucleus of `""_20"Ca"^40`, there are ______
Which of the following has maximum number of atoms?
An atom of Oxygen (O) and two atoms of hydrogen (H.) combine to form a molecule of ______.
