Quiz: Atomic Structure & Atomic Mass Calculations
17 Questions
| Attempts: 4510
Choose or type the answer that best completes each question or prompt.
Questions and Answers
- 1.
The diagram below represents carbon-14. What is the mass number of carbon-14?- A.
6
- B.
14
- C.
8
- D.
20
- 2.
The diagram below represents carbon-14. What is the atomic number of carbon-14?
- A.
6
- B.
14
- C.
8
- D.
20
- 3.
The diagram below represents carbon-14. How many neutrons are in an atom of carbon-14?
- A.
6
- B.
14
- C.
8
- D.
20
- 4.An atom that has 8 protons, 8 neutrons, and 7 electrons would be considered an oxygen ion.
- A.
True
- B.
False
- 5.An atom with 9 protons, 10 neutrons, and 9 electrons would be considered an isotope of fluorine.
- A.
True
- B.
False
- 6.An atom that contains an unequal number of protons and electrons is called a(n)
- A.
Atom
- B.
Molecule
- C.
Isotope
- D.
Ion
- 7.An atom that contains a different number of neutrons than the normally occurring version is called a(n)
- A.
Atom
- B.
Molecule
- C.
Ion
- D.
Isotope
- 8.Which type of subatomic particle has a positive charge?
- A.
Proton
- B.
Neutron
- C.
Electron
- 9.Which type of subatomic particle has a negative charge?
- A.
Proton
- B.
Neutron
- C.
Electron
- 10.Which type of subatomic particle has no charge, meaning it is neutral?
- A.
Proton
- B.
Neutron
- C.
Electron
- 11.
In the diagram below, what color represents the electrons?
- A.
Blue
- B.
Yellow
- C.
Red
- D.
They are not represented.
- 12.Which subatomic particle determines the identity of an atom? In other words, all atoms of one element will always have the same number of these.
- A.
Proton
- B.
Neutron
- C.
Electron
- 13.Ga-69 has a mass of 68.926 amu and an abundance of 60.10%. Ga-71 has a mass of 70.925 amu and an abundance of 39.90%. What is the weighted average atomic mass of galium? (Type only a numeric answer. Do not include units.)
- 14.Cl-35 has a mass of 34.969 amu and a relative abundance of 75.7%. Cl-37 has a mass of 36.965 amu and a relative abundance of 24.3%. What is the weighted average atomic mass of chlorine? (Type only a numeric answer. Do not include units.)
- 15.Ag-107 has a mass of 106.905 amu and an abundance of 51.84%. Ag-109 has a mass of 108.905 and an abundance of 48.16%. What is the weighted average atomic mass of silver? (Type only a numeric answer. Do not include units.)
- 16.Which particle(s) are found in the nucleus?
- A.
Proton
- B.
Neutron
- C.
Electron
- 17.Which particle(s) are located outside the nucleus?
- A.
Proton
- B.
Neutron
- C.
Electron
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