Question 1

Gamma rays will be deflected in a magnetic field.

Accepted Answer

A) True 
 B)False

Question 2

Which of the halogens is a liquid at room temperature?

Accepted Answer

A)  fluorine 
B)  chlorine 
C)  bromine 
D)  iodine 
A)  fluorine 
B)  chlorine 
C)  bromine 
D)  iodine

Question 3

The number of protons in a Br atom is

Accepted Answer

A)  35. 
B)  80. 
C)  79. 
D)  81. 
A)  35. 
B)  80. 
C)  79. 
D)  81.

Question 4

The experiment that confirmed the existence of neutrons was performed

Accepted Answer

A)  before the discovery of the proton. 
B)  at about the same time as the discovery of the proton. 
C)  after the discovery of the proton. 
D)  with the discovery of the first element. 
A)  before the discovery of the proton. 
B)  at about the same time as the discovery of the proton. 
C)  after the discovery of the proton. 
D)  with the discovery of the first element.

Question 5

Anions migrate toward the cathode.

Accepted Answer

A) True 
 B)False

Question 6

Potassium has ________ valence electron(s).

Accepted Answer

The answer of Potassium has ________ valence electron(s)....

Question 7

Elements in the same group generally have

Accepted Answer

A)  different properties. 
B)  similar properties. 
C)  similar number of neutrons. 
D)  similar chemical symbols. 
A)  different properties. 
B)  similar properties. 
C)  similar number of neutrons. 
D)  similar chemical symbols.

Question 8

Which is NOT true about the atomic number?

Accepted Answer

A)  The atomic number of an element is the number of protons in an atom. 
B)  The atomic number of an element is equal to the positive charge of an atom's nucleus. 
C)  The atomic number of an element is equal to the number of electrons in a neutral atom. 
D)  The atomic number of an element is equal to the number of electrons in a charged atom. 
A)  The atomic number of an element is the number of protons in an atom. 
B)  The atomic number of an element is equal to the positive charge of an atom's nucleus. 
C)  The atomic number of an element is equal to the number of electrons in a neutral atom. 
D)  The atomic number of an element is equal to the number of electrons in a charged atom.

Question 9

How does the periodic table substantiate atomic theory?

Accepted Answer

A)  Both are theoretical and cannot support each other. 
B)  Groups in the periodic table have similar properties based on similar features of atomic structure, namely, the same number of valence electrons per atom. 
C)  All elements in a given period of the periodic table have the same number of valence electrons. 
D)  Mendeleev declared consistency between the periodic table and atomic theory. 
A)  Both are theoretical and cannot support each other. 
B)  Groups in the periodic table have similar properties based on similar features of atomic structure, namely, the same number of valence electrons per atom. 
C)  All elements in a given period of the periodic table have the same number of valence electrons. 
D)  Mendeleev declared consistency between the periodic table and atomic theory.

Question 10

Which element is a halogen?

Accepted Answer

A)  Ba 
B)  Li 
C)  Xe 
D)  F 
A)  Ba 
B)  Li 
C)  Xe 
D)  F

Question 11

The mass of the electrons in atoms is generally regarded as

Accepted Answer

A)  significant. 
B)  insignificant. 
C)  comparable to the mass of the nucleus. 
D)  unknown. 
A)  significant. 
B)  insignificant. 
C)  comparable to the mass of the nucleus. 
D)  unknown.

Question 12

Current methods of converting solar energy into electricity use inexpensive materials.

Accepted Answer

A) True 
 B)False

Question 13

What is the maximum number of electrons that can occupy a single orbital?

Accepted Answer

A)  1 
B)  2 
C)  8 
D)  0 
A)  1 
B)  2 
C)  8 
D)  0

Question 14

Which type of radioactivity has a negative charge?

Accepted Answer

A)  alpha, α 
B)  beta, β 
C)  gamma, γ 
D)  delta, δ 
A)  alpha, α 
B)  beta, β 
C)  gamma, γ 
D)  delta, δ

Question 15

Which orbital will have the highest energy?

Accepted Answer

A)  3d 
B)  3p 
C)  4s 
D)  2p 
A)  3d 
B)  3p 
C)  4s 
D)  2p

Question 16

A 5s orbital will have higher energy than a 5d orbital.

Accepted Answer

A) True 
 B)False

Question 17

As the energy level of an electron increases, the electron's distance from the nucleus, on average,

Accepted Answer

A)  increases. 
B)  decreases. 
C)  remains the same. 
D)  cannot be predicted. 
A)  increases. 
B)  decreases. 
C)  remains the same. 
D)  cannot be predicted.

Question 18

The proton has

Accepted Answer

A)  the same mass and charge as the electron. 
B)  a smaller mass and same charge as the electron. 
C)  a smaller mass and opposite charge as the electron. 
D)  a larger mass and opposite charge as the electron. 
A)  the same mass and charge as the electron. 
B)  a smaller mass and same charge as the electron. 
C)  a smaller mass and opposite charge as the electron. 
D)  a larger mass and opposite charge as the electron.

Question 19

What is the maximum number of electrons that can occupy the 2s sublevel?

Accepted Answer

A)  3 
B)  1 
C)  4 
D)  2 
A)  3 
B)  1 
C)  4 
D)  2

Question 20

Radioactivity is

Accepted Answer

A)  the spontaneous emission of radiation from unstable elements. 
B)  the emission of light from certain substances after exposure to sunlight. 
C)  the spontaneous emission of radio waves from matter. 
D)  the emission of light from matter when exposed to radio waves. 
A)  the spontaneous emission of radiation from unstable elements. 
B)  the emission of light from certain substances after exposure to sunlight. 
C)  the spontaneous emission of radio waves from matter. 
D)  the emission of light from matter when exposed to radio waves.

Exam 3: Atomic Structure

Gamma rays will be deflected in a magnetic field.

Which of the halogens is a liquid at room temperature?

The number of protons in a Br atom is

The experiment that confirmed the existence of neutrons was performed

Anions migrate toward the cathode.

Potassium has ________ valence electron(s).

Elements in the same group generally have

Which is NOT true about the atomic number?

How does the periodic table substantiate atomic theory?

Which element is a halogen?

The mass of the electrons in atoms is generally regarded as

Current methods of converting solar energy into electricity use inexpensive materials.

What is the maximum number of electrons that can occupy a single orbital?

Which type of radioactivity has a negative charge?

Which orbital will have the highest energy?

A 5s orbital will have higher energy than a 5d orbital.

As the energy level of an electron increases, the electron's distance from the nucleus, on average,

The proton has

What is the maximum number of electrons that can occupy the 2s sublevel?

Radioactivity is

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