WorksheetsModule 2: Atoms and Elements - Review
Total questions: 55
Worksheet time: 44mins
Which of the following is a characteristic of durable scientific knowledge? (2.01)
It remains unchanged over time.
It is rarely subjected to examination.
Several scientists' investigations support it.
Similar investigations yield dissimilar results.
Which of the following provides evidence to support Rutherford's model of the atomic nucleus? (2.01)
Gold foil experiment
Plum pudding model
Spectrum of colors emitted by gas
Radiation produced when alpha particles hit beryllium
Which of the following observations indicates that atoms of all elements contain small, negatively charged particles? (2.01)
Alpha particles are repelled by cathode rays of elements.
Cathode rays are deflected towards a positively charged rod.
A particular frequency of light is produced by a gas in an excited state.
Certain areas of the atom called orbitals contain all the charged particles.
The table shows the charge on three unknown subatomic particles.
Which particle is most likely present in the space outside of the nucleus of the atom? (2.01)
Only particle X
Only particle Z
Both particles X and Y
Both particles Y and Z
The table shows the number of charged particles in an ion.
A negatively charged substance is brought near the ion. What will most likely happen and why? (2.01)
The ion will repel the substance because it has more electrons than protons.
The ion will repel the substance because it has more protons than electrons.
The ion will attract the substance because it has more electrons than protons.
The ion will attract the substance because it has more protons than electrons.
What is the lowest point of a wave called? (2.02)
Amplitude
Crest
Frequency
Trough
What is the highest point of a wave called? (2.02)
Amplitude
Crest
Frequency
Trough
Which of the following methods can be used to identify the suspected use of heat lamps in a house without entering the house? (2.02)
Identify the lamps inside the house using x−ray machines.
Detect the heat emitted by the lamps using infrared rays.
Use special cameras to emit ultraviolet light that can detect the heat lamps.
Capture the images of lamps inside the house using radars that send radio wave signals.
What term is used to describe the lowest energy level of a particle? (2.03)
Photon
Excited state
Ground state
Emission spectrum
An electron moved from a higher energy level to a lower energy level. What most likely happened during the transition? (2.03)
A photon was released.
A photon was absorbed.
A fixed amount of energy was absorbed.
A random amount of energy was released.
Describe an electron cloud. Then, name and explain a particular atomic model that used the concept of the electron cloud. (2.04)
What is an orbital? (2.04)
Define principal quantum number. (2.04)
The table compares the number of electrons in two unknown neutral atoms.
Use this information to determine the number of valence electrons in the atoms. Which of the following correctly compares the stability of the two atoms? (2.04)
Both are unreactive.
Both are highly reactive.
A is unreactive and D is reactive.
A is reactive and D is unreactive.
A substance is a good conductor of electricity. Which of the following best explains the probable position of the substance in the periodic table? (2.06)
It is between groups 1 to 12 because it is a metal.
It is between groups 13 to 18 because it is a metal.
It is between groups 1 to 12 because it is a non-metal.
It is between groups 13 to 18 because it is a non-metal.
Which of the following groups of elements are likely to be radioactive? (2.06)
Actinides
Noble gases
Transition metals
BCNOs
Describe the properties of alkali metals. Based on their electronic arrangement, explain whether they exist alone in nature. (2.06)
Describe the properties of alkaline earth metals. Based on their electronic arrangement, explain whether they can exist alone in nature. (2.06)
Describe the properties of noble gases. Based on their electronic arrangement, explain whether they can exist alone in nature. (2.06)
Which of the following properties decrease down a column in the periodic table? (2.07)
Effective nuclear charge
Ionization energy
Atomic radii
Ionic radii
Which of the following correctly compares the radii of Na and Na+? (2.07)
Na has a smaller radius than Na+ because Na has expanded its electron cloud.
Na has a larger radius than Na+ because Na has lost its outermost energy shell.
Na has a smaller radius than Na+ because Na+ has expanded its electron cloud.
Na has a larger radius than Na+ because Na+ has lost its outermost energy shell.
Which of the following explains how Hahn, Strassman, and Meitner tried to influence the use of their discovery? (2.08)
They opposed the use of energy released during nuclear fission for military purposes.
They supported the use of quantum mechanics for identifying chemical substances.
They supported the use of radioactive elements for diagnostic purposes.
They opposed the use of nuclear fusion during the Manhattan Project.
Which of the following is true for a reliable scientific source? (2.08)
It cites logic.
It cites opinions.
It cites valid data.
It cites common sense.
Which of the following is a characteristic of reliable scientific study? (2.08)
It is reported in scientific journals and websites.
It is based on the work of a famous scientist.
It is a part of a marketing campaign.
It is cited by at least one researcher.
Which of the following is a characteristic of reliable scientific study? (2.08)
It is based on others' experience.
It is based on personal experience.
It is supported by a large media house.
It is supported by empirical evidence.
Which of the following is a characteristic of robust scientific knowledge? (2.01)
It is frequently re-examined.
It is rarely subjected to arguments.
It has been disproven several times.
It develops over a short duration of time.
Which of the following is most likely to make scientific knowledge stronger?
Creating new hypotheses
Lack of observational evidence
Few scientists working towards it
Evaluating it with experimentation and argument
Which of the following provides evidence to support Bohr's theory of atomic orbitals? (2.01)
Gold foil experiment
Plum pudding model
Spectrum of colors emitted by gas
Radiation produced when beryllium is bombarded with alpha particles
Which of the following provides evidence to support Thomson's hypothesis about electrons? (2.01)
Gold foil experiment
Cathode ray experiments
Spectrum of colors emitted by gas
Radiation produced when beryllium is bombarded with alpha particles
Which of the following observations indicates that there is a small, dense, positively charged part in the center of an atom? (2.01)
Some uncharged particles are scattered by a gold foil.
All uncharged particles are attracted towards a gold foil.
All positively charged particles pass straight through a gold foil.
Some positively charged particles bounce back from a gold foil.
Which of the following observations indicates that an atom has neutrons? (2.01)
Some uncharged particles are scattered by a beryllium atom when it hits a gold foil.
Some uncharged particles bounce back from a gold foil when it is bombarded with alpha particles.
A radiation with neutral particles is emitted when alpha particles strike beryllium atoms.
A radiation which attracts electrons is produced when a beryllium atom is bombarded with alpha particles.
The table shows the charge on three unknown subatomic particles.
Which particle is most likely present in the nucleus of the atom? (2.01)
Only particle X
Only particle Z
Both particles X and Y
Both particles Y and Z
The table compares the masses of three unknown subatomic particles.
Which particle is most likely present in the nucleus of the atom? (2.01)
Only particle P
Only particle Q
Both particles Q and R
Both particles P and R
The table compares the masses of three unknown subatomic particles.
Which particle is most likely present in the cloud of the atom? (2.01)
Only particle P
Only particle Q
Both particles Q and R
Both particles P and R
The table shows the number of charged subatomic particles in an ion.
A negatively charged substance is brought near the ion. What will most likely happen and why? (2.01)
The ion will attract the substance because it has more electrons than protons.
The ion will attract the substance because it has more protons than electrons.
The ion will repel the substance because it has more electrons than protons.
The ion will repel the substance because it has more protons than electrons.
The table shows the number of charged subatomic particles in an ion.
A positively charged substance is brought near the ion. What will most likely happen and why? (2.01)
The ion will attract the substance because it has lost two electrons.
The ion will attract the substance because it has lost an electron.
The ion will repel the substance because it has lost two electrons.
The ion will repel the substance because it has lost an electron.
What is the vertical distance between the center line of a wave and the crest called? (2.02)
Amplitude
Frequency
Trough
Wavelength
A football player experiences acute pain in his knee. Which of the following methods can a doctor use to diagnose the reason for the pain? (2.02)
Use infrared radiation from warm objects to look inside the knees.
Use radio waves emitted by radioactive substances to look at bones.
Use radiations emitted by very hot objects to penetrate the skin and bones.
Use x−ray radiation to see if there are any fractured bones.
Two friends at different locations want to communicate with each other by sending low energy signals. Which of the following methods can they use to communicate? (2.02)
Produce x−rays using colliding electrons and send them to radios, which capture sound.
Send messages using infrared radiations, which travel in the form of waves.
Send radio waves through intervening media like radio and television.
Produce sound waves using microwaves from heated objects.
What term is used to describe the energy level of any level higher than the ground state of a particle? (2.03)
Photon state
Excited state
Higher state
Emission state
What term is used to describe a particle representing a quantum energy? (2.03)
Corpuscle
Electron
Neutron
Photon
An electron moved from a lower energy level to a higher energy level. What most likely happened during the transition? (2.03)
A random amount of light was released.
A fixed amount of energy was absorbed.
A fixed amount of energy was released.
A random amount of light was absorbed.
An electron moved from shell n = 2 to shell n = 1. What most likely happened during the transition? (2.03)
A fraction of a photon was added.
A photon of energy was absorbed.
A fraction of a photon was removed.
A photon of energy was released.
The table compares the number of electrons in two unknown neutral atoms.
Use this information to determine the number of valence electrons in the atoms. Which of the following correctly compares the stability of the two atoms? (2.04)
Both are unreactive.
Both are highly reactive.
A is unreactive and D is reactive.
A is reactive and D is unreactive.
The table compares the number of electrons in two unknown neutral atoms.
Use this information to determine the number of valence electrons in the atoms. Which of the following correctly compares the stability of the two atoms? (2.04)
Both are unreactive.
Both are highly reactive.
A is unreactive and D is reactive.
A is reactive and D is unreactive.
A substance is present in the gaseous state at room temperature. Which of the following best explains the probable position of the substance in the periodic table? (2.06)
It is between groups 1 to 12 because it is a metal.
It is between groups 13 to 18 because it is a metal.
It is between groups 1 to 12 because it is a non-metal.
It is between groups 13 to 18 because it is a non-metal.
A substance is highly malleable and has a shiny luster. Which of the following best explains the probable position of the substance in the periodic table? (2.06)
Right or middle of the table because it is a non-metal.
Left or middle of the table because it is a non-metal.
Left or middle of the table because it is a metal.
Right or middle of the table because it is a metal.
Which of the following groups of elements are likely to have substances that have both metallic and non-metallic properties? (2.06)
Actinides
Group 18
Lanthanides
Group 14
Which of the following groups of elements are likely to have elements in the three states of matter? (2.06)
Alkali metals
Actinides
Halogens
Lanthanides
Which of the following properties decrease from left to right across a row in the periodic table? (2.07)
Atomic radii
Effective nuclear charge
Ionization energy
Number of core electrons
Which of the following properties increase down a column in the periodic table? (2.07)
Effective nuclear charge
Ionic radii
Ionization energy
Number of valence shell electrons
Which of the following correctly compares the radii of Cl and Cl−? (2.07)
Cl has a larger radius than Cl− because Cl has an additional energy shell.
Cl has a smaller radius than Cl− because Cl has an expanded electron cloud.
Cl has a larger radius than Cl− because Cl− has an additional energy shell.
Cl has a smaller radius than Cl− because Cl− has an expanded electron cloud.
Which of the following correctly compares the radii of F and F−? (2.07)
F has a smaller radius than F− because an additional electron causes greater repulsion in F−.
F has a larger radius than F− because an additional electron causes greater repulsion in F.
F has a smaller radius than F− because F− has an additional energy shell
F has a larger radius than F− because F has an additional energy shell.
Which of the following explains how Marie and Pierre Curie tried to influence the use of their discovery? (2.08)
They supported the use of radioactive elements in generating inexpensive power.
They opposed the use of energy released during nuclear fission at the time of war.
They supported the use of radioactive elements for medical diagnostic purposes.
They opposed the use of nuclear fusion during the Manhattan Project.
Which of the following explains how Albert Einstein tried to influence the use of his discovery of the energy equation? (2.08)
He opposed the use of nuclear fusion during the Manhattan Project.
He recommended uncontrolled fusion for medical testing and treatment.
He supported the use of radioactive elements for medical diagnostic purposes.
He recommended applying the principles of nuclear fission to defend against enemies.
