Charged Particles in Matter

IMPORTANT

Charged Particles in Matter: Overview

This topic covers concepts such as Atom, Atoms as Building Blocks of Matter, The Indivisible Atom, Indications for Divisibility of Atom, Charged Particles Present in Atom, Concept of Static Charge, Discovery of Electron, Discovery of Proton, etc.

Important Questions on Charged Particles in Matter

EASY
IMPORTANT

Who proposed that matter is made up of tiny particles called atoms?

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Protons are represented as:

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What is the charge on an electron?

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It is also known as the core of an atom:

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What are the negatively charged particles in an atom called?

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The main particle of outer part of an atom is

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The approximate size of an atom is:

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Which of the following statement is true?

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Which of the following is true for mass and charge of electron?

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The ratio of the mass of the proton to the mass of the electron is nearly -

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What is the ratio of the mass of the proton to the mass of the electron is nearly?

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The mass of 1 mole of electrons is

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Which of the following statement is incorrect?

HARD
IMPORTANT

An electron has a total energy of 2 MeV . Calculate the effective mass of the electron in kg and its speed. Assume rest mass of electron 0.511 MeV .