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प्रश्न
Name the particle or particles you would expect to find in :
The nucleus of an atom
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उत्तर
The nucleus of an atom : protons and neutrons
APPEARS IN
संबंधित प्रश्न
TRUE \ FALSE
Cathode rays are a stream of fast moving particles that travel in random directions.
ANSWER IN DETAIL
State the postulates of the Dalton’s atomic theory.
Fill in the blank
An ion with positive charge is called ______
Fill in the blank
An ion with negative charge is called _______
Give two examples for each of ionic and covalent bond.
How did Neils Bohr visualise the atom ?
An atom has 13 protons and 14 neutrons.
What is the atomic mass of the atom ?
Write the relation between nanometre and metre.
How many times is a proton heavier than an electron?
The electronic configuration of an element Z is 2, 8, 8.
(a) What is the atomic number of the element?
(b) State whether element Z is a metal or a non-metal.
(c) What type of ion (if any) will be formed by an atom of element Z? Why?
(d) What is special about the outermost electron shell of the atom of this element?
(e) Give the name and symbol of element Z.
(f) Name the group of elements to which Z belongs.
Find the mass of 2 moles of nitrogen atoms.
Electron, proton, neutron are the types of ______ in an atom.
What is the contribution of the following in atomic structure?
Maharshi Kanada
Elements X and Y have 1 and 7 electrons in their outermost shell respectively.
Which will form negative ion?
Select the correct answer to the statement given below:
The smallest particle of a substance – capable of independent existence and which retains the characteristics of the substance.
The smallest particle of matter that can exist by itself is ______.
Define the following term with an example.
Metal
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
An atom of Oxygen (O) and two atoms of hydrogen (H.) combine to form a molecule of ______.
