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Atoms - Class XII Physics Quiz

Class XII
Physics
Atoms
13 questions
HARD

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Preview questions

1. What is the charge of an electron?

+1.6 x 10^-19 C · -1.6 x 10^-19 C · 0 C · +3.2 x 10^-19 C

2. Which particle is considered the fundamental building block of matter?

Atom · Molecule · Electron · Nucleus

3. What is the mass of a proton in kg?

1.67 x 10^-27 kg · 9.11 x 10^-31 kg · 1.67 x 10^-24 kg · 1.00 x 10^-28 kg

4. The atomic number of an element is defined as the number of which subatomic particle?

Protons · Neutrons · Electrons · Nucleons

5. Which of the following statements about isotopes is true?

Same number of protons, different neutrons · Different protons, same neutrons · Same mass, different charge · Different mass, same charge