
Structure of matter
Quiz by Nova
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20 questions
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- Q1What is the smallest unit of matter that retains the properties of an element?MoleculeIonAtomCompound30s
- Q2What subatomic particle has a positive charge?NeutronProtonPhotonElectron30s
- Q3Which particles are found in the nucleus of an atom?IonsElectronsProtons and neutronsMolecules30s
- Q4Which term describes a substance made of two or more different types of atoms bonded together?SolutionElementCompoundMixture30s
- Q5Which of the following best describes an ion?A stable compoundA charged atom or moleculeA neutral atomA mixture of elements30s
- Q6What determines the atomic number of an element?The number of protons in its nucleusThe total number of particles in the atomThe number of electronsThe number of neutrons30s
- Q7What is the primary force that holds the protons and neutrons together in the nucleus of an atom?Gravitational forceStrong nuclear forceWeak nuclear forceElectromagnetic force30s
- Q8What type of bond involves the sharing of electron pairs between atoms?Ionic bondMetallic bondCovalent bondHydrogen bond30s
- Q9Which particle has a mass that is approximately 1/1836 that of a proton?ProtonElectronQuarkNeutron30s
- Q10What is the term for the fixed ratio of atoms in a compound?Ionic formulaMolecular formulaStructural formulaEmpirical formula30s
- Q11What is the smallest unit of matter that retains the properties of an element?IonCompoundAtomMolecule30s
- Q12Which particle in an atom carries a positive charge?PhotonProtonElectronNeutron30s
- Q13What is the name of the force that holds protons and neutrons together in the nucleus?Electromagnetic forceGravitational forceFrictional forceNuclear force30s
- Q14What subatomic particle orbits the nucleus of an atom?ElectronProtonQuarkNeutron30s
- Q15What determines the atomic number of an element?Number of neutronsNumber of electronsNumber of moleculesNumber of protons30s