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Atoms and Quantum Theory

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9th grade Physics Quiz on Atoms and Quantum Theory, created by Zoe Griffin on 31/05/2018.
Zoe Griffin
Quiz by Zoe Griffin, updated more than 1 year ago
Zoe Griffin
Created by Zoe Griffin almost 6 years ago
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Resource summary

Question 1

Question
The ____ is one kind of particle that makes up the atom and carries a positive charge.
Answer
  • Electron
  • Proton
  • Neutron
  • Plasma

Question 2

Question
Compared to protons, electrons have:
Answer
  • Much smaller mass and opposite charge
  • About the same mass and opposite charge
  • Much larger mass and the same charge
  • Much larger mass and opposite charge

Question 3

Question
What is the net charge of an atom with the same number of protons and electrons?
Answer
  • Equal to the number of protons multiplied by the charge on one proton
  • Equal to the number of electrons multiplied by the charge on one electron
  • Equal to the number of protons plus the number of neutrons
  • Zero

Question 4

Question
A common isotope of iron has a mass number of 56. How many protons and neutrons does this atom have in its nucleus?
Answer
  • 26
  • 56
  • 30
  • 4

Question 5

Question
Atoms with the same number of protons but different numbers of neutrons are called:
Answer
  • Prototypes
  • Isomers
  • Isotopes
  • Ions

Question 6

Question
Looking at your periodic table, the atomic number represents the:
Answer
  • Number of electrons plus the number of protons
  • Number of neutrons plus the number of protons
  • Number of protons in the nucleus
  • The average number of neutrons and protons for all naturally-occurring isotopes

Question 7

Question
In order for an atom to be considered stable, what is the general rule that must be followed (this rule does have exceptions, but works for most atoms)?
Answer
  • The number of electrons should equal the number of protons
  • The number of neutrons should equal the number of protons
  • The number of electrons should equal the column number
  • The number of protons should equal the number of electrons

Question 8

Question
Protons and neutrons are found grouped together in the:
Answer
  • Electron cloud
  • Charge
  • Nucleus
  • Periodic table

Question 9

Question
Electrons that are in the outer-most shell of the atom are considered to be in the:
Answer
  • Photon barrier
  • Quantum dynamo
  • Nucleus
  • Valence shell

Question 10

Question
Do any of the atom diagrams below represent atoms of the same element?
Image:
Atoms Test Q 10 (binary/octet-stream)
Answer
  • No, they are all different elements
  • Yes, atom A and atom B are the same
  • Yes, all of the atoms are the same
  • Yes, atom A and atom C are the same

Question 11

Question
Which of the following is a TRUE statement about neutral atoms?
Answer
  • All neutral atoms of the same element have the same number of electrons, protons, and neutrons
  • Neutral atoms of different elements may have the same number of protons in the nucleus
  • All neutral atoms of the same element have the same number of electrons and protons but many have a different number of neutrons
  • The number of neutrons is equal to the number of protons

Question 12

Question
The periodic table notation for carbon-13 is shown below _______ C 6 Carbon _______ Referring to this figure, how many protons, electrons, and neutrons does carbon-13 have?
Answer
  • 6, 7, 13
  • 6, 6, 7
  • 7, 6, 13
  • 7, 7, 13

Question 13

Question
The periodic table notation for silicon (Is) is shown below _______ Si 14 Silicon ________ A neutral atom of silicon has how many electrons?
Answer
  • 14
  • 7
  • 28
  • Cannot be determined with the information given

Question 14

Question
The noble gases such as helium and xenon do not form chemical bonds with other elements because they:
Answer
  • Have completely filled valence shells
  • Are chemically unstable
  • Are usually large atoms
  • Have been around the longest on Earth

Question 15

Question
Phosphorus has an average atomic mass of 30.974 amu. What isotope of Phosphorus are you most likely to find should you take a random sampling of Phosphorus from the Earth?
Answer
  • Phosphorus-30
  • Phosphorus-31
  • Phosphorus-32
  • Cannot be determined with the given information

Question 16

Question
The diagram shows a spectrum. The different colored bright lines represent:
Image:
Quantum Theory Q 16 (binary/octet-stream)
Answer
  • Light of different energies
  • The diameter of atoms of different size
  • Atoms that are radioactive
  • Values of the strong nuclear force

Question 17

Question
Which of the following is evidence that electrons in atoms cannot have any amount of energy they would like but instead are only allowed to have certain specific amounts of energy?
Answer
  • The atomic mass is the sum of the number of protons and neutrons
  • Only specific colors of light are given off by atoms
  • All atoms of the same element have the same chemical properties
  • Radioactive elements are unstable

Question 18

Question
An ion of iodine-127 has a charge of +5. How many electrons does it have?
Answer
  • 127
  • 132
  • 58
  • 48
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