AnswersChemistryAtomic Numbers and Electron Configurations

Atomic Numbers and Electron Configurations — Quiz Answers

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1
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Which characteristic is given by the principal quantum number?

A
orbital orientation
B
orbital mass
C
orbital size
D
orbital shape
2
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Which is the electron configuration for zinc?

A
1 s squared 2 s squared 2 p to the 5th power 3 s squared 3 p to the 6th power 4 s squared 3 d to the 10th power
B
1 s squared 2 s squared 2 p to the 6th power 3 s squared 3 p to the 6th power 4 s to the 1th power 3 d to the 10th power
C
1 s squared 2 s squared 2 p to the 6th power 3 s squared 3 p to the 6th power 4 s squared 3 d to the 8th power
D
1 s squared 2 s squared 2 p to the 6th power 3 s squared 3 p to the 6th power 4 s squared 3 d to the 10th power
3

The electron configuration for Helium He is shown. 1 s squared Which diagram shows the correct distribution of electrons in the electron shells of a helium atom?

A
Image with description A gray circle is labeled 6 P 6 N is surrounded by two concentric circles. The inner circle has dots at the north and south positions; the outer circle has dots at the north, south, east, and west positions.
B
Image with description A gray circle is labeled 5 P 6 N. It is surrounded by two concentric circles. The inner circle has gray dots at the north and south positions. The outer circle has three evenly spaced dots; none of these align with the dots in the inner circle.
C
Image with description A gray circle labeled 1 P 0 N is surrounded by a concentric circle with one gray dot at the north position.
D
Image with description A gray circle is labeled 2 P 2 N. A concentric circle surrounding it has two gray dots, at the north and south positions.
4

The electron configuration for magnesium is shown. 1 s squared 2 s squared 2 p to the 6th power 3 s squared Which diagram shows the correct distribution of electrons in the electron shells of a magnesium atom?

A
Image with description A gray circle labeled 12 P 12 N is surrounded by three concentric circles. The innermost circle has gray dots at the north and south positions; the middle circle has eight gray dots equally spaced around the circle, with dots aligned with those in the inner circle; the outer circle has gray dots at the north and south positions.
B
Image with description A gray circle labeled 4 P 5 N is surrounded by two concentric circles. Each of the concentric circles has gray dots at the north and south positions.
C
Image with description A gray circle labeled 12 P 12 N is surrounded by three concentric circles. The innermost circle has gray dots at the north and south positions; the middle circle has eight gray dots equally spaced around the circle, with dots aligned with those in the inner circle; the outer circle has a gray dot at the north position.
D
Image with description A gray circle labeled 3 P 4 N is surrounded by two concentric circles. The inner circle has gray dots at the north and south positions, and the outer circle has a dot at the north position.
5

Each atom of an element has these electron configuration. 1 s squared 2 s squared 2 p to the 6th power 3 s squared 3 p to the 6th power 4 s squared 3 d to the 10th power 4 p to the 6th power 5 s squared 4 d to the 10th power 5 p to the 5th power What is the name of the element?

A
iodine
B
xenon
C
bromine
D
tellurium
6

Consider the electron configuration. Expand Image Which element has this electron configuration?

A
fluorine
B
astatine
C
bromine
D
chlorine
7

Which set of numbers gives the correct possible values of l for n is equal to 3 ?

A
negative 3 , negative 2 , negative 1 , 0 , 1 , 2 , 3
B
negative 2 , negative 1 , 0 , 1 , 2
C
0 , 1 , 2 , 3
D
0 , 1 , 2
8

To show the electron configuration for an atom, what is the advantage of using an orbital notation compared to a dot structure?

A
Orbital notation shows the electron distribution in shells.
B
Orbital notation takes up less space.
C
Orbital notation makes it easier to count the electrons.
D
Orbital notation shows the spin of the electrons.
9

Which is the electron configuration for lithium?

A
1 s to the 1th power 2 s squared
B
1 s squared 2 s to the 1th power
C
1 s squared
D
2 s cubed
10

If a shell can hold a maximum of 32 electrons, what is the value of n ?

A
2
B
5
C
3
D
4

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