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Chemistry
7th -
8thgrade
Particle Model, Element, Compounds and the Periodic Table
27 questions
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- 1. Multiple ChoiceHow do materials change from one state of matter to another?They gain or lose energyThey break appartThe particles get stickyerThey are magnetised to themselves
- 2. Multiple ChoiceCan Solids be compressed?NoYesSometimes (it depends what it's made of)Generally no
- 3. Multiple ChoiceHow do gases behave in a container?Cluster togetherform a solidThey take the shape of their containerleak out
- 4. Multiple ChoiceWhat sorts of things are made of particles?Everything in the universeAnything solidWaterMost solids, liquids and gases.
- 5. Multiple ChoiceWhat is the atomic number for an element with three protons?2136
- 6. Multiple ChoiceParticles in an atom's nucleus that are neutral and have no charge aremegatrons.electrons.neutrons.protons.
- 7. Multiple ChoiceAn atom with atomic number 6 would have how many protons?6123cannot be determined
- 8. Multiple ChoiceMost of an atom's mass is found in theelectrons.nucleus.
- 9. Multiple ChoiceHow many electrons does a Copper atom have?63299234
- 10. Multiple ChoiceHow many electrons does a Copper atom have?63299234
- 11. Multiple ChoiceHow many neutrons does a Hydrogen atom have?1230
- 12. Multiple ChoiceWhat is the atomic number for an element with 41 neutrons and a mass number of 80?394180121
- 13. Multiple ChoiceWhat is the atomic number for an element with 41 neutrons and a mass number of 80?394180121
- 14. Multiple ChoiceAtomic mass - Atomic Number =protonsneutronselectronsAverage Mass
- 15. Multiple ChoiceAn element is defined by its number ofprotonselectronsneutronsprotons + electrons
- 16. Multiple ChoiceWhich of the subatomic particles is the lightestall have the same massprotonsneutronselectrons
- 17. Multiple ChoiceWhich of the subatomic particles is the lightestall have the same massprotonsneutronselectrons
- 18. Multiple ChoiceWhat is the atomic mass of Neon?1020.1810.1830.18
- 19. Multiple ChoiceWhat does the 6 represent above the CSymbolNameMass NumberAtomic Number
- 20. Multiple ChoiceThe mass after a physical change in a closed system, such as ice melting into water, stays the sameTrueFalse
- 21. Multiple Choicethe smallest particle of matteratomelementmoleculecompound
- 22. Multiple Choicemade up of two or more atoms chemically combinedatomelementmoleculecompound
- 23. Multiple Choicemade up of two or more DIFFERENT atoms/elements chemically combinedatomelementmoleculecompound
- 24. Multiple ChoiceHow many atoms/elements are in NO2?1234
- 25. Multiple ChoiceIs NO2 an element or a compound?elementcompound
- 26. Multiple ChoiceIs NO2 an element or a compound?elementcompound
- 27. Multiple ChoiceMolecule or Not? N2moleculenot a molecule
- Answer choicesTagsAnswer choicesTags