ICSE Class 8 Atomic Structure and Valency — practice questions
20 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.
Practice ICSE Class 8 Atomic Structure and Valency in the app →Maharishi Kanad called the indestructible particle of matter aThe Greek word 'atomos' meansWhich postulate of Dalton's atomic theory states atoms cannot be created or destroyed?Which sub-particles of an atom carry charge?Atomic number of an element is the number ofMass number of an atom equalsElectrons in an atom are arranged in shells. The maximum number of electrons in the n-th shell isAn ion is formed when an atomValency of sodium (atomic number 11) isIsotopes of an element haveRutherford's gold foil experiment showed that an atom is mostlyBohr improved the atom model by proposing that electrons revolve inWhich element has the electron arrangement 2, 8, 1?Which subatomic particle has nearly the same mass as a proton?Cathode rays are streams ofThe valency of chlorine in HCl isWhich radical has valency 2?Number of neutrons in an atom of carbon-14 with atomic number 6 isWhich best describes radioactivity introduced in the chapter?Which scientist's experiment is associated with the discovery of the proton?