Three
Two
Four
Five
The atom is considered the basic building block of matter. Anything that has a mass—in other words, anything that occupies space—is composed of atoms. While its name originally referred to a particle that couldn’t be divided any more—the smallest thing possible—we now know that each atom is generally made up of smaller particles. Given that these particles make up atoms, they are often referred to as subatomic particles. There are three subatomic particles: protons, neutrons and electrons.
Two of the subatomic particles have electrical charges: protons have a positive charge while electrons have a negative charge. Neutrons, on the other hand, don’t have a charge. A fundamental rule is that particles with the same charge are repulsed from each other, while particles with opposite charges are attracted to each other. So, much like opposite ends of a magnet, protons and electrons are attracted to each other. Likewise, just as when you experience resistance trying to push the same ends of two magnets together, protons are repelled from other protons and electrons are repelled from other electrons.
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Related MCQs
- Martin Luther King, Jr. was an clergyman, activist, and leader. He is famous for? (CSS 2013 Current Affairs Paper)
- Civil Rights Movement using non-violent civil disobedience in USA.
- Civil rights Movement using violence in South Africa
- Civil Rights Movement using non-violent civil disobedience in India
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Submitted by: CSS Exam Desk Team
- Permanent hardness of water is due to the presence of? (CSS 2014 General Science & Ability Paper)
- Calcium bicarbonate
- Magnesium bicarbonate
- Calcium sulphate
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Submitted by: CSS Exam Desk Team
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- Ahmad Rashid
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- None of these
Submitted by: CSS Exam Desk Team
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- Soft breeze
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- None of these
Submitted by: CSS Exam Desk Team
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Submitted by: CSS Exam Desk Team
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- Tulip
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Submitted by: CSS Exam Desk Team
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Submitted by: CSS Exam Desk Team
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- Five times
- Six times
- Six times
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Submitted by: None of these
- The SYNONYM of the word \"FOIBLE\" is? (CSS 1989 English Precis & Composition Paper)
- Petty lie
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Submitted by: CSS Exam Desk Team
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- 8 minutes
- 25 minutes
- 45 minutes
- 60 minutes
Submitted by: CSS Exam Desk Team
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- 52
- 37
- 29
- 47
Submitted by: CSS Exam Desk Team
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- National
- Expedient
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Submitted by: CSS Exam Desk Team
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- 1964
- 1966
- 1968
- 1960
Submitted by: CSS Exam Desk Team
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- Hazrat Jaafar bin Abi Talib(رضی اللّٰہ عنہ)
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Submitted by: CSS Exam Desk Team
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- 28 times
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- 33 times
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Submitted by: CSS Exam Desk Team
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Submitted by: CSS Exam Desk Team
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- Wavelength
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Submitted by: CSS Exam Desk Team
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Submitted by: CSS Exam Desk Team
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Submitted by: CSS Exam Desk Team
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Submitted by: CSS Exam Desk Team
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- Taqwa
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Submitted by: CSS Exam Desk Team
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- 1950
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- None of these
Submitted by: CSS Exam Desk Team
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- 1608
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Submitted by: CSS Exam Desk Team
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- 2
- 3
- 4
- 5
Submitted by: CSS Exam Desk Team
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- 262
- 266
- 268
- None of these
Submitted by: CSS Exam Desk Team