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महाराष्ट्र राज्य शिक्षण मंडळएस.एस.सी (इंग्रजी माध्यम) इयत्ता ८ वी

Match the pairs. Group 'A' a. Proton b. Electron c. Neutron Group 'B' i. Negatively charged ii. Neutral iii. Positively charged

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प्रश्न

Match the pairs.

Group 'A' Group 'B'
a. Proton i. Negatively charged
b. Electron ii. Neutral
c. Neutron iii. Positively charged
जोड्या लावा/जोड्या जुळवा
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उत्तर

Group 'A' Answer
a. Proton iii. Positively charged
b. Electron i. Negatively charged
c. Neutron ii. Neutral
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पाठ 5: Inside the Atom - Exercises [पृष्ठ ८६]

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बालभारती General Science Integrated [English] Standard 8 Maharashtra State Board
पाठ 5 Inside the Atom
Exercises | Q 6. | पृष्ठ ८६

संबंधित प्रश्‍न

The average atomic mass of a sample of an element X is 16.2 u. What are the percentages of isotopes `""_8^16X" and """_8^18X` in the sample?


Write the names of `"Ca"("NO"_3)_2` compounds :


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 ?


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.


Give brief information of three subatomic particles with reference to electrical charge, mass and location.


Give scientific reason.

All the mass of an atom is concentrated in the nucleus.


Define the following term:

Atom


What is the contribution of the following in atomic structure?
Maharshi Kanada


Compare: 

Chlorine atom and chloride ion, with respect to

Atomic structure
Electrical state


Draw the diagrams representing the atomic structures of the following: Neon


Draw the basic structure of an atom representing its –

  1. Subatomic particles
  2. Nucleus
  3. Orbits or shells.

Rewrite the given sentence in correct form.

Elements contain two or more kind of atoms and compounds contain only one kind of atom.


K: Potassium:: C: ______.


Define – Atom.


______ is the smallest particle of an element.


Does the solubility of a substance change with temperature? Explain with the help of an example.


Atomic models have been improved over the years. Arrange the following atomic models in the order of their chronological order

  1. Rutherford’s atomic model
  2. Thomson’s atomic model
  3. Bohr’s atomic model

Write any two observations which support the fact that atoms are divisible.


The most abundant type of atom is the universe is ______.


______ is a substance that is made up of three oxygen atoms chemically combined.


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