IGCSE O Level Chemistry MCQs – Practice Test for Exam Prep

Protons, Neutrons and Electrons Multiple Choice Questions with Answers – PDF Download

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Protons, Neutrons and Electrons MCQs PDF Download – Prep Test

MCQ 1: In the periodic table, the period number indicates the number of:

neutrons
protons
electrons
photons

MCQ 2: Chemical properties of an element are largely derived through the:

position in the periodic table
proton number of an element
nucleon number of element
number of valence electrons

MCQ 3: What is correct about electrons?

they have negligible mass
they have relative charge of -1
their charge is opposite and equal to a proton
all of above

MCQ 4: Mass of an electron is:

¹⁄₁₈₄₀ of a proton only
¹⁄₁₈₄₀ of a neutron only
1860 times of a proton
¹⁄₁₈₄₀ of a proton and neutron

MCQ 5: Helium (He) is not an inert gas because it has:

higher chemical reactivity only
half shell of valence electrons only
no electrons
higher chemical reactivity and half shell of valence electrons

IGCSE O Level Chemistry MCQs App & e-Book – Protons Neutrons and Electrons Practice Tests

Redox Reaction: Oxidation MCQs

Making and Breaking Bonds MCQs

Valence Electrons MCQs

pH Scale: Acid and Alkali MCQs

Properties: Bases and Reactions MCQs

Dissolving, Filtering and Evaporating MCQs

Ionic and Covalent Substances MCQs

Change of State MCQs

Methods of Purification: Sublimation MCQs

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