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प्रश्न
Fill in the blank
Neutrons are .......................... particles having mass equal to that of protons.
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उत्तर
Neutrons are neutral particles having mass equal to that of protons.
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संबंधित प्रश्न
Mention briefly the salient features of Dalton’s atomic theory (five points)
FILL IN THE BLANK
In an atom, the last shell containing electrons is called its..................shell.
TRUE \ FALSE
Electrons are present in the nucleus.
WRITE SHORT ANSWER
What is the charge on a neutron ?
WRITE SHORT ANSWER
What is the number of neutrons present in a potassium atom ?
Draw the electronic configuration of the following elements clearly stating the number of neutrons and protons in their nucleus.
a. Beryllium b. Silicon
c. Chlorine d. Aluminium
e. Nitrogen
Name the negatively charged particle present in the atoms of all the elements.
Compare a proton and a neutron in respect of mass and charge.
Which of the following statement is always correct?
What is meant by the term subatomic particles?
