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- 1. Multiple ChoiceThis particle is found in the nucleus and has no chargeNeutronProtonElectron
- 2. Multiple ChoiceThis particle is found in the nucleus and has a positive chargeElectronProtonNeutron
- 3. Multiple ChoiceThis is a negatively charged particle found outside the nucleusElectronProtonNeutron
- 4. Multiple ChoiceThis contains most of the mass of an atomElectron CloudNucleusElectron
- 5. Multiple ChoiceThis is the simplest of all atoms and contains only one proton and one electronOxygenHydrogenWater
- 6. Multiple ChoiceThe first person to ever talk about an atom wasDemocritusRutherfordDalton
- 7. Multiple ChoiceAll matter is made of what?energyatomselectronscompounds
- 8. Multiple ChoiceHow did Rutherford discover the proton?Cathode tube ray experimentGold Foil ExperimentPlanetary ModelPlum Pudding Model
- 9. Multiple ChoiceWho stated that all atoms of the same element are excacty alike?DemocritusDaltonThomsonBorh
- 10. Multiple Choice
What scientist is best known for his "Plum Pudding" model of the atom?J.J. TomsonErnest RutherfordJohn DaltonDemocritus - 11. Multiple ChoiceWhat contribution did John Dalton make to atomic theory?He discovered that every atom was positively charged.He discovered that every element consisted of one type of atom.He discovered that atoms had nuclei.He discovered that atoms could be divided into smaller parts.
- 12. Multiple ChoicePlace the following scientists in order, from earliest to latest:
A) Ernest Rutherford
B) J.J. Thomson
C) John DaltonB,C,AC,A,BA,C,BC,B,A - 13. 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
- 14. Multiple ChoiceRutherford's gold foil experiment provided evidence that...negative and positive charges are spread evenly throughout the atom.alpha particles have a positive charge.gold is not a dense as previously thought.there is a dense positively charged nucleus at the center of an atom.
- 15. Multiple ChoicePeople have always agreed that matter is made of atoms.TrueFalse
- 16. Multiple ChoiceAn atom's overall charge is ________.positivedependsneutralnegative
- 17. Multiple ChoiceWhat does the nucleus of an atom contain?Electrons and neutronsProtons and neutronsNeutrinos and positronsDNA and RN
- 18. Multiple ChoiceWho came up with this model of an atom?J.J. ThompsonErnest RutherfordNeils BohrJames Chadwick
- 19. Multiple ChoiceTrue or False: The majority of an atom is made up of empty spaceTrueFalse
- 20. Multiple ChoiceContributes basically no mass to an atom.protonsneutronselectronsprotons and neutrons
- 21. Multiple ChoiceThe majority of an atom's mass exists where?In the nucleusIn the electron cloudIn the space between the nucleus and the electronsIn the neutrons
- 22. Multiple ChoiceWhich particle is responsible for the chemical properties of an atom?NeutronProtonsValence ElectronsNucleus
- 23. Multiple ChoiceNeon has an atomic number of 10 and an atomic mass of 20.180. How many protons, electrons, and neutrons will it have?P=10 E=10 N=11P=5 E=5 N=10P=10 E=10 N=10P=10 E=5 N=5
- 24. Multiple ChoiceWhat element is pictured?HydorgenBoronBerylliumArsenic
- 25. Multiple ChoiceThe atomic number for Oxygen is 8, sothere are 8 protons in the atomthe atomic mass is less than 8the mass of the atom is 8the atom is decaying
- 26. Multiple Choice
The nucleus of most atoms is composed of which of the following sub-atomic particles?
tightly packed protons.
tightly packed neutrons.
tightly packed protons and neutrons.
loosely connected protons and electrons.
- 27. Multiple Choice
The smallest unit of an element is composed of the following “sub-atomic particles”.
protons, neutrons, and ions
protons, neutrons, and electrons
protons, neutrinos, and ions
protium, deuterium, and tritium
- 28. Multiple Choice
According to the scientific theory of atoms, which of the following statements best describes the location of electrons?
in the nucleus of the atom
both in the nucleus and around it
outside the nucleus in the surrounding electron cloud
on the outer edge of the nucleus because they are attracted to the protons
- 29. Multiple Choice
The periodic table was created by grouping elements according to their properties. An unknown substance was shown to contain a metal element with an atomic mass between 69 and 70. With which of the following elements is it most likely grouped?
nitrogen
oxygen
carbon
boron
- 30. Multiple Choice
In the modern periodic table of elements, all the known elements are arranged by which property?
radioactivity
atomic mass
atomic number
number of electrons
- 31. Multiple Choice
How do neutrons affect the charge of an atom?
An atom that has more neutrons than protons and electrons will be neutral.
Neutrons do not affect the electrical charge of an atom.
An atom with more neutrons than electrons will have a positive charge.
Fewer neutrons than electrons will give an atom a positive charge
- 32. Multiple Choice
Which of the following statements regarding the periodic table of elements is true?
All elements on the periodic table are made up of the same fundamental particles: protons, neutrons and electrons.
The periodic table does not list all the known elements in the universe.
The properties of elements can be predicted by their positions in the periodic table, but their bonding patterns cannot be predicted.
All nonliving things consist of elements on the periodic table; all living things consist of things that are not listed on the periodic table.
- 33. Multiple Choice
In the modern periodic table, which of the following describes atoms with similar chemical behavior and properties?
They have the same number of isotopes.
They are in the same period.
They are in the same group.
They have similar atomic masses.
- 34. Multiple Choice
Which of the following statements about atoms is TRUE?
They are the same for all elements.
They are both stable and nonradioactive.
They are arranged in the periodic table according to number of protons.
They are made up of protons and electrons in a nucleus surrounded by orbiting neutrons.
- 35. Multiple Choice
Two common liquids, water and peroxide, are both formed with atoms of hydrogen and oxygen. If both substances discussed above are made of hydrogen and oxygen, how is the make-up of the two substances different?
The number of atoms of each element is different.
The number of protons in the atoms of each element is different.
The number of neutrons in the atoms of each element is different.
The number of electrons in the atoms of each element is different.
- 36. Multiple Choice
Which of the following correctly describes a property of an atom?
It has more protons than neutrons.
It has a negative or positive charge.
It has an equal number of protons and electrons.
It has an equal number of neutrons and electrons.
- 37. Multiple Choice
Chemical changes involve a change in the composition of a substance. Which of the following is NOT an indicator that a chemical change has occurred?
color change
change in mass
formation of a precipitate
increase or decrease in temperature
- 38. Multiple Choice
Use the periodic table to complete the sentence below. Along each period of the periodic table,
atomic mass changes in no set pattern.
atomic mass increases from left to right.
atomic mass decreases from left to right.
atomic mass is the same for all elements in the row.
- 39. Multiple Choice
Helium (He), neon (Ne) and argon (Ar) are all colorless, odorless gases with low chemical reactivity. Based on the periodic table above, which of the following is correct?
Carbon (C) is a colorless, odorless gas with low chemical reactivity.
Xenon (Xe) is a colorless, odorless gas with low chemical reactivity.
Chlorine (Cl) is a colorless, odorless gas with low chemical reactivity.
Selenium (Se) is a colorless, odorless gas with low chemical reactivity.
- 40. Multiple Choice
Silver (Ag), Copper (Cu) and Gold (Au) are all metallic elements that are excellent conductors of both heat and electricity. Based on the periodic table above, which of the following is correct?
Iodine (I) is a metallic element that is an excellent conductor.
Boron (B) is a metallic element that is an excellent conductor.
Nickel (Ni) is a metallic element that is an excellent conductor.
Hydrogen (H) is a metallic element that is an excellent conductor.
- 41. Multiple Choice
Elements are arranged in the periodic table based on various patterns. For example, the element magnesium (Mg).
is in the same period as Lithium (Li).
is in the same group as Calcium (Ca).
has a lower atomic mass than the element sodium (Na).
has a higher atomic number than the element calcium (Ca)
- 42. Multiple Choice
Lithium (Li), Sodium (Na), Potassium (K), Rubidium (Rb), Cesium (Cs), and Francium (Fr) are all found within the same group in the periodic table. Which statement below best describes how they are grouped?
An atom of each element is similar in size.
An atom of each element have similar properties.
An atom of each element has the same number of neutrons.
An atom of each element has the same number of electrons.
- 43. Multiple Choice
Which of the following recognized by the scientists as the smallest unit of an element?
atom
proton
electron
molecule
- 44. Multiple Choice
Which of these statements describes an atom's nucleus?
It has a negative charge
It is made of neutrons and protons
It has less mass than an electron
It has the same mass in all atoms
- 45. Multiple Choice
Which statement is TRUE about the subatomic particles?
Subatomic particles form atoms.
Subatomic particles are made up of atoms.
Subatomic particles retain properties of elements.
Subatomic particles have either a positive or negative charge.
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