Quiz about Topic 12 HL Atomic Structure Questions

Question 1

Which represents the shape of an s atomic orbital?

Accepted Answer

A

Answer

B

Answer

C

Answer

D

Question 2

Which transition in the hydrogen atom emits visible light?

Accepted Answer

n = 3 to n = 2

Answer

n = 1 to n = 2

Answer

n = 2 to n = 3

Answer

n = 2 to n = 1

Question 3

Which shows the first ionization energies of successive elements across period 2, from left to right?

Accepted Answer

C

Answer

A

Answer

B

Answer

D

Question 4

What is the ground state electron configuration of an atom of chromium, Cr (Z = 24)?

Accepted Answer

[Ar] 4s¹3d⁵

Answer

[Ar] 3d6

Answer

[Ar] 4s²3d⁴

Answer

[Ar] 4s²4p⁴

Question 5

Which of the following transitions in the hydrogen atom emits the least energy?

Accepted Answer

n = 4 to n = 3

Answer

n = 2 to n = 1

Answer

n = 3 to n = 1

Answer

n = 4 to n = 2

Question 6

Which statements are correct for the emission spectrum of hydrogen?

I. The lines converge at higher frequencies.

II. Electron transitions to n = 2 are responsible for lines in the visible region.

III. Lines are produced when electrons move from lower to higher energy levels.

Accepted Answer

I and II only

Answer

I and III only

Answer

II and III only

Answer

I, II and III

Question 7

Which are correct statements about the emission spectrum of hydrogen in the visible region?

I. The red line has a lower energy than the blue line.

II. The lines converge at longer wavelength.

III. The frequency of the blue line is greater than the frequency of the red line.

Accepted Answer

II and III only

Answer

I and II only

Answer

I and III only

Answer

I, II and III

Question 8

The values for the first three successive ionization energies for two elements X and Z are given.

Which pair of elements represents X and Z?

Accepted Answer

X is Li and Z is C

Answer

X is Li and Z is Be

Answer

X is Be and Z is Li

Answer

X is Be and Z is C

Question 9

Which transition on the diagram corresponds to the ionization of hydrogen in the ground state?

Accepted Answer

A

Answer

B

Answer

C

Answer

D

Question 10

The graph shows the first ionization energies of some consecutive elements.

Which statement is correct?

Accepted Answer

X is in group 18

Answer

Y is in group 3

Answer

Y is in group 10

Answer

X is in group 5

Question 11

The full electron configuration of an element is:1s²2s²2p⁶3s²3p²

To which group and period does the element belong?

Accepted Answer

D

Answer

A

Answer

B

Answer

C

Question 12

Which electron transition emits radiation of the longest wavelength?

Accepted Answer

C

Answer

A

Answer

B

Answer

D

Question 13

The graph represents the first ten ionisation energies (IE) of an element.

What is the element?

Accepted Answer

S

Answer

O

Answer

Ne

Answer

Cl

Question 14

Which statement explains one of the decreases in first ionization energy (I.E.) across period 3?

Accepted Answer

The electron-electron repulsion is greater, for the electron with the opposite spin, in element S than in element P.

Answer

The nuclear charge of element Al is greater than element Mg.

Answer

A new sub-level is being filled at element S.

Answer

The p orbital being filled in element Al is at a lower energy than the s orbital in element Mg.

Question 15

Which is correct for the line emission spectrum for hydrogen?

Accepted Answer

Line M has a longer wavelength than line N.

Answer

Line M has a higher energy than line N.

Answer

Line N has a lower frequency than line M.

Answer

Lines converge at lower energy.

Question 16

What is the condensed electron configuration of the Fe²⁺ ion?

Accepted Answer

[Ar] 3d6

Answer

[Ar] 3d⁴4s²

Answer

[Ar] 3d⁵4s¹

Answer

[Ar] 3d⁶4s²

Question 17

The diagram shows the first ionization energies of four consecutive elements in the periodic table. Which element is in Group 14?

Accepted Answer

B

Answer

A

Answer

C

Answer

D

Question 18

A period 3 element, M, forms an oxide of the type M₂O. Which represents the first four successive ionization energies of M?

Accepted Answer

A

Answer

B

Answer

C

Answer

D

Question 19

Which statements about the chlorine free radical are correct?

I. It has 18 electrons.

II. It is an uncharged species.

III. It is formed by homolytic fission.

Accepted Answer

II and III only

Answer

I and II only

Answer

I and III only

Answer

I, II and III

Question 20

Some possible electron transitions in a hydrogen atom are shown below. Which letter represents the electron transition with the highest energy in the emission spectrum?

Accepted Answer

B

Answer

A

Answer

C

Answer

D

Question 21

Which species have the same electron arrangements?

I. O^2-, F^-, Ne

II. Li⁺, Na⁺, K⁺

III. S^2-, Ar, K⁺

Accepted Answer

I and III only

Answer

I and II only

Answer

II and III only

Answer

I, II and III

Question 22

Which statement about the periodic table is correct?

Accepted Answer

The elements with atomic numbers 20, 38 and 56 have the same number of electrons in their outer energy level.

Answer

The elements with atomic numbers 8, 16 and 34 have the same number of main energy levels.

Answer

The elements with atomic numbers 8, 9 and 10 have similar chemical properties.

Answer

The elements with atomic numbers 20, 21 and 22 are in the same group.

Question 23

Which electron configurations do not follow the Hund's rule?

Accepted Answer

II and III only

Answer

I and II only

Answer

I and III only

Answer

I, II and III

Question 24

Which statement correctly describes the atomic emission spectrum of hydrogen?

Accepted Answer

It is a line spectrum converging at high frequency.

Answer

It is a continuous spectrum converging at high frequency.

Answer

It is a continuous spectrum converging at low frequency.

Answer

It is a line spectrum converging at low frequency.

Question 25

Which diagram shows a pattern similar to the emission spectrum of hydrogen?

Accepted Answer

B

Answer

A

Answer

C

Answer

D

Question 26

What is the correct electron configuration of the Cu+

ion?

Accepted Answer

[Ar] 3d¹⁰

Answer

[Ar] 3d⁷ 4s¹

Answer

[Ar] 3d⁷ 4s²

Answer

[Ar] 3d⁸ 4s¹

Question 27

Which species has the electron configuration of 1s²2s²2p⁶3s²3p⁶3d⁸?

Accepted Answer

Ni2+

Answer

Ni

Answer

Fe

Answer

Cu2+

Question 28

Which statement about the electromagnetic spectrum is correct?

Accepted Answer

The frequency of visible light is higher than the frequency of infrared light.

Answer

Infrared light has a shorter wavelength than ultraviolet light.

Answer

Visible light has a shorter wavelength than ultraviolet light.

Answer

The energy of infrared light is higher than the energy of visible light.

Question 29

What is the name of the type of spectrum consisting only of specific wavelengths?

Accepted Answer

Line

Answer

Electromagnetic

Answer

Continuous

Answer

Mass

Question 30

Which statements are correct for silicon?

I. Its electron arrangement is 2,8,4.

II. It has four electrons in its highest occupied energy level.

III. In the solid state, each silicon atom is covalently bonded to four other silicon atoms in a tetrahedral arrangement.

Accepted Answer

I, II and III

Answer

I and II only

Answer

I and III only

Answer

II and III only

Question 31

In the electromagnetic spectrum, which will have the shortest wavelength and the greatest energy?

Accepted Answer

A

Answer

B

Answer

C

Answer

D

Question 32

Which statement about the electromagnetic spectrum is not correct?

Accepted Answer

The frequency of visible radiation is higher than the frequency of ultraviolet radiation.

Answer

The wavelength of ultraviolet radiation is shorter than infrared radiation.

Answer

The energy of infrared radiation is lower than the energy of ultraviolet radiation.

Answer

Wavelength is inversely proportional to frequency.

Question 33

Which shows the sub-levels in order of increasing energy in the fourth energy level of an atom?

Accepted Answer

s < p < d < f

Answer

f < d < p < s

Answer

p < d < f < s

Answer

d < f < p < s

Question 34

What is the electron configuration of vanadium?

Accepted Answer

1s²2s²2p⁶3s²3p⁶3d³4s²

Answer

1s²2s²2p⁶3s²3p⁶3d²4s³

Answer

1s²2s²2p⁶3s²3p⁶3d⁴4s¹

Answer

1s²2s²2p⁶3s²3p⁶3d⁵

Question 35

Values for the successive ionization energies for an unknown element are given in the table below. In which group of the periodic table would the unknown element be found?

Accepted Answer

1

Answer

2

Answer

3

Answer

4

Question 36

What is the electron arrangement of the Mg²⁺ ion?

Accepted Answer

2,8

Answer

2,2

Answer

2,8,2

Answer

2,8,8

Question 37

Which species have the same number of electrons?

I. S^2-

II. Cl^-

III. Ne

Accepted Answer

I and II only

Answer

I and III only

Answer

II and III only

Answer

I, II and III

Question 38

Which is correct for the following regions of the electromagnetic spectrum?

Accepted Answer

A

Answer

B

Answer

C

Answer

D

Question 39

Between which ionization energies of boron will there be the greatest difference?

Accepted Answer

Between 3rd and 4th ionization energies

Answer

Between 1st and 2nd ionization energies

Answer

Between 2nd and 3rd ionization energies

Answer

Between 4th and 5th ionization energies

Question 40

Which species possesses only two unpaired electrons?

Accepted Answer

Ti2+

Answer

Zn

Answer

Mg

Answer

Fe2+

Question 41

What is the order of increasing energy of the orbitals within a single energy level?

Accepted Answer

s < p < d < f

Answer

d < s < f < p

Answer

p < s < f < d

Answer

f < d < p < s

Question 42

What is the electron configuration of the Cr2+

ion?

Accepted Answer

[Ar]3d⁴4s⁰

Answer

[Ar]3d⁵4s¹

Answer

[Ar]3d³4s¹

Answer

[Ar]3d⁶4s¹

Topic 12 HL Atomic Structure Questions

49 questions

Which represents the shape of an s atomic orbital?

Which transition in the hydrogen atom emits visible light?

Which shows the first ionization energies of successive elements across period 2, from left to right?

What is the ground state electron configuration of an atom of chromium, Cr (Z = 24)?

Which of the following transitions in the hydrogen atom emits the least energy?

Which statements are correct for the emission spectrum of hydrogen?
I. The lines converge at higher frequencies.
II. Electron transitions to n = 2 are responsible for lines in the visible region.
III. Lines are produced when electrons move from lower to higher energy levels.

Which are correct statements about the emission spectrum of hydrogen in the visible region?
I. The red line has a lower energy than the blue line.
II. The lines converge at longer wavelength.
III. The frequency of the blue line is greater than the frequency of the red line.

The values for the first three successive ionization energies for two elements X and Z are given.
Which pair of elements represents X and Z?

Which transition on the diagram corresponds to the ionization of hydrogen in the ground state?

The graph shows the first ionization energies of some consecutive elements.
Which statement is correct?

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Topic 12 HL Atomic Structure Questions

49 questions

Which represents the shape of an s atomic orbital?

Which transition in the hydrogen atom emits visible light?

Which shows the first ionization energies of successive elements across period 2, from left to right?

What is the ground state electron configuration of an atom of chromium, Cr (Z = 24)?

Which of the following transitions in the hydrogen atom emits the least energy?

Which statements are correct for the emission spectrum of hydrogen?I. The lines converge at higher frequencies.II. Electron transitions to n = 2 are responsible for lines in the visible region.III. Lines are produced when electrons move from lower to higher energy levels.

Which are correct statements about the emission spectrum of hydrogen in the visible region?I. The red line has a lower energy than the blue line.II. The lines converge at longer wavelength.III. The frequency of the blue line is greater than the frequency of the red line.

The values for the first three successive ionization energies for two elements X and Z are given.Which pair of elements represents X and Z?

Which transition on the diagram corresponds to the ionization of hydrogen in the ground state?

The graph shows the first ionization energies of some consecutive elements.Which statement is correct?

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Which statements are correct for the emission spectrum of hydrogen?
I. The lines converge at higher frequencies.
II. Electron transitions to n = 2 are responsible for lines in the visible region.
III. Lines are produced when electrons move from lower to higher energy levels.

Which are correct statements about the emission spectrum of hydrogen in the visible region?
I. The red line has a lower energy than the blue line.
II. The lines converge at longer wavelength.
III. The frequency of the blue line is greater than the frequency of the red line.

The values for the first three successive ionization energies for two elements X and Z are given.
Which pair of elements represents X and Z?

The graph shows the first ionization energies of some consecutive elements.
Which statement is correct?