Cell Energy and Enzymes REVIEW GAME

Atomic Structure and RadiationREVIEW GAME

To complete this review game: You will need a copy of the Periodic Table.You will NOT need a calculator.

For additional review, see also:The Atomic Structure Self-QUIZ at http://www.mcwdn.org/chemist/atom/atomquiz.htmlList the following electromagnetic spectrum wave types in order from lowest energy to highest energy:

Gamma raysInfraredMicrowavesRadiowavesUltravioletVisible lightX-rays

List the following electromagnetic spectrum wave types in order from lowest energy to highest energy:

RadiowavesMicrowavesInfraredVisible light UltravioletX-raysGamma rays

What is the relationship between wavelength and frequency in the electromagnetic spectrum?

What is the relationship between wavelength and frequency in the electromagnetic spectrum?

As wavelength decreases, frequency increases

What is the relationship between frequency and energy in the electromagnetic spectrum?

What is the relationship between frequency and energy in the electromagnetic spectrum?

As frequency increases, energy increases

Which of the wave types within the electromagnetic spectrum are potentially ionizing?

Which of the wave types within the electromagnetic spectrum are potentially ionizing?

UltravioletX-raysGamma rays

Which of the statements below is an accurate description of what occurs during ionization of an atom?a. An atom loses a proton and becomes a negatively charged ion.b. An atom loses an electron and becomes a positively charged ion.c. An atom loses an electron and becomes a negatively charged ion. d. An atom gains a neutron and its atomic mass increases by 1.Which of the statements below is an accurate description of what occurs during ionization of an atom?a. An atom loses a proton and becomes a negatively charged ion.b. An atom loses an electron and becomes a positively charged ion.c. An atom loses an electron and becomes a negatively charged ion. d. An atom gains a neutron and its atomic mass increases by 1.How many prot0ns, neutrons and electrons in an atom of Platinum?

How many prot0ns, neutrons and electrons in an atom of Platinum?Protons = 78Neutrons = 117Electrons = 78Referring to the Periodic Table, we can see that platinum, Pt, has an atomic number of 78. Thus Pt has 78 protons. As we are speaking of an uncharged atom, we know that the number of electrons is equal to the number of protons, and is therefore also 78. Referring to the Periodic Table, we can see that platinum has an average atomic mass of 195.08 amu. Rounding to the nearest whole number gives 195 amu. As amu = # protons + # neutrons, we can calculate # neutrons = amu - # protons, which is 195 78 = 117. Thus platinum has 117 neutrons.

Element identity (what element it is) is determined by its atomic number. its mass number. its neutron number. All of these are correct.

Element identity (what element it is) is determined byits atomic number. its mass number. its neutron number. All of these are correct.Element identity, meaning the element NAME, is determined solely be the number of protons, and hence solely by atomic number.

How many prot0ns, neutrons and electrons in a Ba2+ ion?

How many prot0ns, neutrons and electrons in a Ba2+ ion?Protons = 56, Neutrons = 81, Electrons = 54Referring to the Periodic Table, we can see that Ba, barium, has an atomic number of 56. Thus Ba2+ has 56 protons. As we are speaking of an ion with a +2 positive charge, this atom has LOST TWO ELECTRONS. Therefore, this ion has 56 - 2 electrons = 54 electrons. Referring to the Periodic Table, we can see that barium has an average atomic mass of 137.327 amu. As electrons do not contribute to the atomic mass (having virtually no mass themselves), this barium ion has the same average atomic mass. Rounding to the nearest whole number gives 137 amu. As amu = # protons + # neutrons, we can calculate # neutrons = amu - # protons, which is 137 56 = 81. Thus, our barium ion has 81 neutrons.Isotopes of an elementa. Are always radioactiveb. Differ in their number of protonsc. Differ in their number of neutronsd. Differ in their number of electronsIsotopes of an elementa. Are always radioactiveb. Differ in their number of protonsc. Differ in their number of neutronsd. Differ in their number of electronsElement Q has three common isotopes. If the abundance of 44X is 0.03, the abundance of 45X is 0.25%, and the abundance of 48X is 99.72%, what is the average atomic mass of element Q?a. 32.89b. 43.63c. 47.99d. 48.76 Element Q has three common isotopes. If the abundance of 44X is 0.03, the abundance of 45X is 0.25%, and the abundance of 48X is 99.72%, what is the average atomic mass of element Q?a. 32.89b. 43.63c. 47.99d. 48.76 P.S. In this case you dont even need a calculator to figure it out, since only one of the provided responses is within the atomic mass range of the three isotopes. Clearly the average cant be LOWER or HIGHER than that range, and therefore responses a., b., and d. CANNOT be correct. Only c. fits within the range of atomic masses of the isotopes. What atom is depicted in this figure?

What atom is depicted in this figure?

Argon: this atom has 18 protons, meaning anatomic number of 18. referring to the Periodic Table, we can see that the elementwith an atomic number of 18 is Argon.

Which one of the following is a correct representation of an alpha particle?a. 42Heb. 0-1ec. 10ed. 00Which one of the following is a correct representation of an alpha particle?a. 42Heb. 0-1ec. 10ed. 00Following decay, the total number of protons hasa. increased by 2b. decreased by 4c. decreased by 2d. unchanged

Following decay, the total number of protons hasa. increased by 2b. decreased by 4c. decreased by 2d. unchanged

Following decay, the atomic number hasa. increased by 2b. decreased by 4c. decreased by 2d. unchanged

Following decay, the atomic number hasa. increased by 2b. decreased by 4c. decreased by 2d. unchanged

Following decay, the atomic mass hasa. increased by 2b. decreased by 4c. decreased by 2d. unchanged

Following decay, the atomic mass hasa. increased by 2b. decreased by 4c. decreased by 2d. unchanged

Alpha decay produces a new atom whose __________ than those of the original atom.a. atomic number is 2 less and atomic mass is 4 lessb. atomic number is 2 less and atomic mass is 2 lessc. atomic number is 2 more and atomic mass is 4 mored. atomic number is 2 more and atomic mass is 2 less

Alpha decay produces a new atom whose __________ than those of the original atom.a. atomic number is 2 less and atomic mass is 4 lessb. atomic number is 2 less and atomic mass is 2 lessc. atomic number is 2 more and atomic mass is 4 mored. atomic number is 2 more and atomic mass is 2 less

Which one of the following is a correct representation of a beta particle?a. 42Heb. 0-1ec. 10ed. 00Which one of the following is a correct representation of a beta particle?a. 42Heb. 0-1ec. 10ed. 00Following beta decay, the total number of protons hasnot changed decreased by 1increased by 1increased by 2

Following beta decay, the total number of protons hasnot changed decreased by 1increased by 1increased by 2

Following beta decay, the atomic mass hasnot changed decreased by 1increased by 1increased by 2

Following beta decay, the atomic mass hasnot changed decreased by 1increased by 1increased by 2

Following beta decay, the atomic number hasnot changed decreased by 1increased by 1increased by 2

Following beta decay, the atomic number hasnot changed decreased by 1increased by 1increased by 2

What happens to the atomic mass and atomic number of an atom when it undergoes beta () decay?a. The mass number increases by 2 and the atomic number increases by 1.b. The mass number decreases by 4 and the atomic number decreases by 2.c. The mass number does not change and the atomic number increases by 1.d. Neither the mass number nor the atomic number change.

What happens to the atomic mass and atomic number of an atom when it undergoes beta () decay?a. The mass number increases by 2 and the atomic number increases by 1.b. The mass number decreases by 4 and the atomic number decreases by 2.c. The mass number does not change and the atomic number increases by 1.d. Neither the mass number nor the atomic number change.

By what process does uranium-238 decay to thorium-234?a. alpha decayb. beta decayc. gamma ray emission d. electron capture

By what process does uranium-238 decay to thorium-234?a. alpha decayb. beta decayc. gamma ray emission d. electron captureUranium 238 must have undergone alpha decay to produce thorium-234, since atomic mass has decreased by 4. Furthermore, according to the Periodic Table, uranium has an atomic number of 92, while thorium has an atomic number of 90. Therefore, atomic number has decreased by 2. The complete nuclear decay equation is:23892U 23490Th + 42He

What is the missing product from this nuclear decay reaction: 13755Cs 13756Ba + _______________a. 42Heb. 0+1ec. 0-1ed. 00What is the missing product from this nuclear decay reaction: 13755Cs 13756Ba + _______________a. 42Heb. 0+1ec. 0-1ed. 00Cesium-137 has an atomic number of 55, while Barium-137 has an atomic number of 56. Therefore, during this decay reaction, atomic number has gone up by one while atomic mass is unchanged. Such changes are characteristic of beta decay, thus the missing product is a beta particle. The complete nuclear decay equation is:13755Cs 13756Ba + 0-1e

Thorium undergoes alpha decay. The product of this reaction also undergoes alpha decay. What is the final product of this second decay reaction __________ ?

Thorium undergoes alpha decay. The product of this reaction also undergoes alpha decay. What is the final product of this second decay reaction _radon_ ?The problem tells you that two alpha decay events occur. Since atomic number decreases by two for each alpha decay event, the total decrease in atomic number will be 4. The starting thorium atom has an atomic number of 90. Subtracting 4 gives a final atomic number of 86. Referring to the Periodic Table, we can see that the element radon has an atomic number of 86.

What type of radioactive decay does not change the atomic number or atomic mass of an element? a. electron capture b. gamma ray emission c. alpha decay d. beta decay

What type of radioactive decay does not change the atomic number or atomic mass of an element?a. electron captureb. gamma ray emissionc. alpha decayd. beta decay

Gamma rays have no charge and no mass, being a wave rather than a particle, therefore the emission of gamma rays during decay affects neither atomic mass nor atomic number.

A 39Cl atom ejects a beta particle. What is the product of this reaction?a. 39Ar b. 39Cl c. 39S d. 38Ar

A 39Cl atom ejects a beta particle. What is the product of this reaction?a. 39Ar b. 39Cl c. 39S d. 38Ar Referring to the Periodic Table we can see that the atomic number of Cl is 17. We know that beta decay causes atomic number to increase by 1, therefore the final atomic mass is 18. Referring to the Periodic Table we see that argon (Ar) has an atomic mass of 18. We also know that beta emission causes no change in the atomic mass, therefore the specific isotope generated is argon-39 . The overall nuclear decay equestion is: 3917Cl o-1e + 3918Ar

According to this graph, what is that half-life of radioactive material X?5,000 years10,000 years15,000 years20,000 years

Time (X 1000 years)According to this graph, what is that half-life of radioactive material X?5,000 years10,000 years15,000 years20,000 years The graph shows that 50 % of materialis left after 5 X 1000years, which is equal to 5000 years.

Time (X 1000 years)