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प्रश्न
An atom has 13 protons and 14 neutrons.
What is the atomic number of the atom ?
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उत्तर
What is the atomic number of the atom = 13
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संबंधित प्रश्न
Write the names of `"Na"_3"PO"_4` compounds :
Fill in the blank
An ion with negative charge is called _______
An atom has 13 protons and 14 neutrons.
How many electrons would be present in this atom ?
A certain particle ‘X’ has 17 protons, 18 electrons and 20 neutrons.
Does the particle have an excess of electrons or a deficiency of electrons ?
Fill in the blank
A charged particle is called an _____
Fill in the blank
An _______ is electrically neutral.
Name the three subatomic particles present in an atom.
Why is it not possible to see an atom even with the most powerful microscope ?
What value has been given to the mass of this reference atom ?
What is an atom ? How do atoms usually exist ?
Give scientific reason.
All the mass of an atom is concentrated in the nucleus.
Draw the electron dot structure of this compound.
State the meaning of the term – (a) atom, (b) molecule, (c) radical – with a suitable example.
Select the correct answer to the statement given below:
The basic unit of matter is not capable of independent existence.
State true or false. If false, correct the statement.
The basic unit of an element is molecule.
State true or false. If false, correct the statement.
An atom is electrically neutral.
Assertion: An atom is electrically neutral.
Reason: Atoms have equal number of protons and electrons.
Which of the following statements made by Dalton has not undergone any change?
Give the salient features of “Modern atomic theory”.
