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- 1. Multiple Choice
A chemical compound always has the same elements in the same proportions by mass regardless of the source of the compound. This is a statement of
the law of multiple proportions.
the law of isotopes.
the law of definite proportions.
the law of conservation of mass
- 2. Multiple Choice
Which subatomic particle has a charge of +1
electron
neutron
proton
meson
- 3. Multiple Choice
Which particle has the least mass
electron
neutron
proton
All have the same mass.
- 4. Multiple Choice
Look at the figure to answer the question below
What subatomic particle did Thomson discover?
proton
electron
neutron
atom
- 5. Multiple Choice
Mass is neither created nor destroyed, this is called ?
law of conservation of mass
law of multiple proportions
law of definite proportionality
law of the universe
- 6. Multiple Choice
which on of Dalton's postulates is wrong?
the atom can't be subdivided
the atoms of the same element have the same properties
atoms can be rearranged to create a compound
atoms are the smallest particles
- 7. Multiple Choice
the word isotops mean?
same atomic mass different atomic number
same atomic number different atomic mass
same element different atom
same atom different element
- 8. Multiple Choice
Subatomic particles with a negative charge
Electrons
Neutrons
Protons
Quarks
- 9. Multiple ChoiceSubatomic particles that are neutral in chargeNeutronsProtonsNucleusElectrons
- 10. Multiple ChoiceWhere electrons are likely to be found as they travel around the nucleusNucleusElectron CloudWithin a ProtonWithin a Neutron
- 11. Multiple ChoiceA tiny but very dense, positively charged portion of the atom that holds most of the atomic massElectron ShellsOrbitalsElectron CloudNucleus
- 12. Multiple ChoiceJohn Dalton stated:elements are made of atomsatoms of a given element are identicalatoms cannot be subdivided, created, nor destroyedall of the above
- 13. Multiple ChoiceWhat does the nucleus of an atom contain?Electrons and neutronsProtons and neutronsNeutrinos and positronsDNA and RN
- 14. Multiple ChoiceHe first measured the mass and charge of an electron using the oil drop experiment.Joseph ThomsonRobert MillikanJohn DaltonNiels Bohr
- 15. Multiple ChoiceAll matter is made of what?energyatomselectronscompounds
- 16. Multiple ChoiceJ.J. Thomson provided evidence that an atom...is the smallest particle of mattercontains negatively charged particleshas an overall negative chargehas an overall positive charge
- Answer choicesTagsAnswer choicesTags