WorksheetsAtomic Structure and Light Review
Total questions: 25
Worksheet time: 17mins
Which model of the atom resulted from JJ Thomson's cathode ray experiments?
Nuclear Model
Quantum Model
Plum Pudding Model
Bohr Model
What is the pictured model of the atom called?
Dalton Model
Bohr Model
Quantum Model
Plum Pudding Model
Which of the following was the first to propose the idea of atoms?
Niels Bohr
John Dalton
Ernest Rutherford
Democritus
Which of the following statements do not agree with the conclusions drawn by Ernest Rutherford in his famous gold foil experiment?
(select all that apply)
Atoms have a negatively charged nucleus.
Atoms are dense, solid, indivisible particles.
Atoms have a very small nucleus surrounded by mostly empty space.
Atoms have electrons suspended in a positively charged substance.
Atoms have more than 99% of their mass in the dense nucleus at their center.
Which of the following statements about atoms are NOT true?
(select all that apply)
Most atoms cannot combine with other atoms.
Chemical reactions divide atoms into smaller parts.
Atoms of the same element may have different mass numbers.
Atoms contain only protons.
Isotopes can be made by adding or subtracting protons.
Which of the following waves would have the lowest amount of energy?
All three waves have the same amount of energy.
Which of the following accurately describes the relationship between wavelength and energy as frequency increases across the electromagnetic spectrum?
Energy and wavelength are unrelated for waves on the electromagnetic spectrum.
Wavelength decreases as energy remains constant across the electromagnetic spectrum.
Wavelength increases as energy increases across the electromagnetic spectrum.
Wavelength decreases as energy increases across the electromagnetic spectrum.
The energy of violet light is approximately twice that of red light. How do the wavelengths of violet and red light compare?
The wavelength of violet light is sometimes greater than and sometimes less than the wavelength of red light.
The wavelength of violet light is the same as the wavelength of red light.
The wavelength of violent light is twice the wavelength of red light.
The wavelength of violet light is half the wavelength of red light.
Frequency and wavelength of waves of electromagnetic radiation have a(n) (a) relationship.
Energy and wavelength of waves of electromagnetic radiation have a(n) (a) relationship.
Energy and frequency of waves of electromagnetic radiation have a(n) (a) relationship.
Wave A and wave B are similar waves being compared. If the wavelength of wave B is doubled, how will its frequency change?
The frequency will double.
The frequency will decrease by 1/2.
The frequency will increase by a factor of 4.
The frequency will decrease by a factor of 4.
How many protons (p+) are in a neutral atom of the element represented above?
(a)
How many neutrons (n0) are in a neutral atom of the element represented above?
(a)
How many electrons (e-) are in a neutral atom of the element represented above?
(a)
How can we calculate the average atomic mass of element J given the mass and abundance data in the table for the three isotopes of element J?
(15 + 50 + 35) / 3 = Average atomic mass of J
(Mass Z + Mass Y + Mass W) / 3 = Average atomic mass of J
(Mass Z x 0.15) + (Mass Y x 0.50) + (Mass W x 0.35) = Average atomic mass of J
(Mass Z + 0.15) + (Mass Y + 0.50) + (Mass W +0.35) = Average atomic mass of J
A sample of Element X is found to contain 72.15% of isotope type 1 (84.9118 amu) and 27.85% of isotope type 2 (86.9092 amu).
Calculate the average atomic mass.
85.13 amu
85.47 amu
86.21 amu
86.49 amu
Boron has an average atomic mass of 10.81u and has two naturally occurring isotopes (boron-10 and boron-11). Which isotope of boron is more abundant?
Boron-10 is more abundant.
Boron-11 is more abundant.
Boron-10 and boron-11 have the same abundance.
There is not enough information to answer.
Which element matches the mass abundance data given in the table?
aluminum
chromium
magnesium
sodium
Which statement correctly explains the composition of the nucleus of rubidium-87?
rubidium-87 has 37 protons and 37 electrons
rubidium-87 has 37 protons and 37 neutrons
rubidium 87 has 37 protons and 50 electrons
rubidium 87 has 37 protons and 50 neutrons
10.0 grams of water in the form of a solid has a temperature of 0.0 °C. The cube of ice is placed in a room with a temperature of 25.0 °C. The ice starts melting to form a puddle of water.
The initial mass of 10.0 grams of water is what kind of property?
personal
chemical
intensive
extensive
Which statement best describes why a gas is easily compressible while most solids are incompressible?
The molecules of a gas ae much smaller than the molecules of a solid.
The molecules of a solid are not attracted to one another.
The molecules of a gas are much farther apart than the molecules of a solid.
The molecules of a solid are much larger than the molecules of a gas.
A student makes salad dressing by combining vegetable oil, vinegar, salt, pepper, mustard, and thyme. None of the ingredients are measured. The next time the student makes salad dressing, basil is used in place of the thyme.
Which classification best describes the salad dressing?
element
compound
homogeneous mixture
heterogeneous mixture
JJ Thomson developed the plum pudding model of the atom after conducting a series of experiments with cathode ray tubes. The diagram illustrates one of the cathode ray tube experiments. What subatomic particle did JJ Thomson discover as a result of these experiments?
(a)
JJ Thomson developed the plum pudding model of the atom after conducting a series of experiments with cathode ray tubes. The diagram illustrates one of the cathode ray tube experiments.
The cathode ray bending away from the negatively charged metal plate is evidence that the particles it is made of are (a) .
