Quiz about KAP Electrons

Question 1

Leina is studying the electron configuration of an oxygen atom. Which of the following electron configurations matches an oxygen atom?

Accepted Answer

1s²2s²2p⁴

Answer

1s²2s²2p⁶3s2, 3p⁶4s²3d¹⁰4p⁵

Answer

1s²2s²2p⁶

Answer

1s²2s²2p⁶3s²3p⁶4s²3d¹

Question 2

Phillip is studying the electron configuration of an atom, which is 1s²2s²2p⁶. How many electrons does this atom have?

Accepted Answer

10

Answer

3

Answer

6

Answer

8

Question 3

Emily is studying the electron configuration of elements and comes across Chlorine (Cl). Which electron configuration correctly represents Chlorine?

Accepted Answer

1s²2s²2p⁶3s²3p⁵

Answer

1s²2s²2p⁶3s²3p⁶

Answer

1s²2s²2p⁶3s²3p⁷

Question 4

Harvy and Emma are studying chemistry together. They come across a question about electron capacity in sublevels. They want to know how many electrons can the d sublevel hold in an atom?

Accepted Answer

10

Answer

14

Answer

2

Answer

6

Question 5

Henry is learning about electron configurations in chemistry class. He wants to know how many electrons can the s sublevel hold in an atom. Can you help him?

Accepted Answer

2

Answer

14

Answer

10

Answer

6

Question 6

James, Hilveen, Anthony, Miguel, and Connor are studying the electron configuration of atoms. They are discussing the maximum number of electrons that can be held in the p sublevel. How many electrons can the p sublevel hold?

Accepted Answer

6

Answer

14

Answer

10

Answer

2

Question 7

Olivia is studying the periodic table and comes across an element. She notices that the element has a certain number of valence electrons. How many valence electrons does the element have?

Accepted Answer

5

Answer

7

Answer

2

Answer

8

Question 8

Emma is studying chemistry and comes across an element with the electron configuration 1s²2s²2p⁶3s²3p⁶4s²3d¹⁰. Which element is she looking at?

Accepted Answer

Zinc

Answer

Copper

Answer

Nickel

Answer

Germanium

Question 9

Naomi is studying the electron configuration of elements. She comes across Aluminum (Al) and wants to identify its electron configuration. Which of the following is the correct electron configuration for Aluminum?

Accepted Answer

1s²2s²2p⁶3s²3p¹

Answer

1s²2s²2p⁶3s²3p³

Answer

1s²2s²2p⁶3s²4p¹

Question 10

Terry and Melissa are studying chemistry and they come across a carbon atom. They want to know the number of valence electrons in it. Can you help them?

Accepted Answer

4

Answer

12

Answer

6

Answer

5

Question 11

Emerson and Jerick are discussing about the Pauli exclusion principle. Emerson says it states that each electron occupies the lowest energy orbital available. Jerick, on the other hand, says it states that a maximum of two electrons can occupy a single atomic orbital, but only if the electrons have opposite spins. Mateo thinks it states that single electrons with the same spin must occupy each-energy orbital before additional electrons with opposite spins can occupy the same orbitals. Who is correct?

Accepted Answer

Jerick's statement is correct

Answer

Emerson's statement is correct

Answer

Mateo's statement is correct

Question 12

Jerick, Amada, Eric, Leina, and Sophie are studying chemistry together. They are discussing Hund's rule. According to Hund's rule, what happens when electrons occupy an energy orbital?

Accepted Answer

Jerick suggests that single electrons with the same spin must occupy each-energy orbital before additional electrons with opposite spins can occupy the same orbitals

Answer

Amada thinks that each electron occupies the lowest energy orbital available

Answer

Eric believes that a maximum of two electrons can occupy a single atomic orbital, but only if the electrons have opposite spins

Question 13

Mauricio and Miguel are in a science lab. Mauricio shows Miguel a picture of an element and asks him to identify it. Which element is Miguel looking at?

Accepted Answer

neon

Answer

fluorine

Answer

magnesium

Answer

argon

Question 14

Qi and Lillian are studying for their chemistry exam. They come across an orbital diagram in their textbook. Lillian thinks there is something incorrect about the diagram. What could be her concern?

Accepted Answer

In the 2p box there should only be 1 up arrow in the first 2p box and one up arrow in the 2nd 2p box

Answer

Both arrows in the first 2p box should be pointing down

Answer

There is nothing incorrect with this diagram

Answer

All the arrows should be pointing up.

Question 15

Christian, Atlas, Miguel, Sonia, and Lillian are studying chemistry together. They come across a chemical element and its electron configuration is given as 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p². They are trying to figure out how many valence electrons this element has. Can you help them?

Accepted Answer

4

Answer

2

Answer

12

Answer

10

Question 16

Carlos and Evan are working on a chemistry project about noble gas configurations. They are trying to figure out the noble gas configuration for Sulfur. Can you help them?

Accepted Answer

[Ne] 3s² 3p⁴

Answer

[Ar] 3p4

Answer

[He] 3s² 3p⁴

Answer

[Na] 3s² 3p⁴

Question 17

Charles is working on a chemistry project about noble gas configurations. He is particularly interested in Cobalt. Can you help him figure out the noble gas configuration for Cobalt?

Accepted Answer

[Ar] 4s² 3d⁷

Answer

[Kr] 4s² 3d⁷

Answer

[Kr] 4s² 4d⁷

Answer

[Ar] 4s² 4d⁷

Question 18

Sebastian and Qi are studying chemistry together. Sebastian is curious about the electron configuration of an oxygen ion (O^2-) that they came across in their study material. Can you help them figure it out?

Accepted Answer

1s²2s²2p⁶

Answer

1s²2s²2p⁶3s2, 3p⁶4s²3d¹⁰4p⁵

Answer

1s²2s²2p⁴

Answer

1s²2s²2p⁶3s²3p⁶4s²3d¹

Question 19

Owen is studying the properties of aluminium for a science project. He learned that an aluminium ion (Al³⁺) has a specific electron configuration. Can you help him identify the correct configuration?

Accepted Answer

1s² 2s² 2p⁶

Answer

1s² 2s² 2p⁶ 3s²

Answer

1s² 2s² 2p⁶ 3s² 3p¹

Answer

1s² 2s² 2p⁶ 3s² 3p⁶

Question 20

During a chemistry class, Carlos and Naomi were discussing the electron configuration of ions. Carlos said that the electron configuration of Ca⁺² is the same as that of an Argon atom. Naomi disagreed. Who is correct?

Accepted Answer

Carlos is correct, the electron configuration is 1s2 2s2 2p6 3s2 3p6

Answer

Carlos is correct, the electron configuration is 1s2 2s2 2p6 3s2 3p6 4s2

Answer

Naomi is correct, the electron configuration is 1s2 2s2 2p6 3s2 3p6 4s4

Answer

Naomi is correct, the electron configuration is 1s2 2s2 2p6 3s2 3p6 4s2 4p2

Question 21

During a science experiment, Terry and Leina observed two types of radiation. Terry thinks that radiation type (a) has a higher frequency, while Leina thinks it's radiation type (b). Which type of radiation has the HIGHER frequency?

Accepted Answer

(b) Leina's radiation type

Answer

(a) Terry's radiation type

Question 22

Lucas is studying the behavior of electromagnetic waves for his science project. He noticed that as he increased the frequency of the waves, the amount of energy in those waves...

Accepted Answer

increased.

Answer

decreased.

Answer

stayed the same.

Question 23

Adnan, Xander, and Jeremy are studying for their physics exam. They are discussing the concept of electromagnetic waves. Adnan says that as the frequency of an electromagnetic wave increases, the speed of light ____.

Accepted Answer

stays the same.

Answer

increases.

Answer

decreases.

Question 24

During a science experiment, Adnan, Amada, Olivia, Nikki, and Dileen were discussing about different types of radiation. They were curious to know, which type of radiation has the SHORTEST wavelength?

Accepted Answer

Gamma Rays

Answer

Radio waves

Answer

Ultraviolet Rays

Answer

X-rays

Question 25

Alex, Sophie, Kathie, Bella, and Sebastian are studying for their physics exam. They are discussing about different types of radiation. Sophie asks, 'Which type of radiation has the LONGEST wavelength?'

Accepted Answer

Radio Waves

Answer

Gamma Rays

Answer

Visible Light

Answer

Infrared rays

Question 26

Liza, a young scientist, was studying about IRAS, the Infrared Astronomy Satellite launched by NASA in 1983. She learned that it had a detector that measured infrared or heat radiation from different regions of space. During her research, she came across a problem. She asked her friends Qi, Carlos, Luke, and Ayush, 'What is the frequency of infrared light that has a wavelength of

1.10 X 10^-6 m?

Accepted Answer

2.73 x 10¹⁴ Hz

Answer

3.67 x 10^-15 Hz

Answer

3.67 x 10^-3 Hz

Answer

2.73 x 10² Hz

Question 27

Christian is studying quantum physics and he comes across a problem where he needs to calculate the energy of a photon emitted by a light bulb with a frequency of 7.39x10¹⁴Hz. He knows that the energy can be calculated using the formula E=Hv. Can you help him find the energy?

Accepted Answer

4.88x10^-19

Answer

4.88x10¹⁹

Answer

2.22x10²³

Answer

2.22x10^-23

Question 28

During a science experiment, Luke observed that when atoms _____________ energy, their electrons move to higher energy levels. These electrons _____________ energy by emitting light when they return to lower energy levels. What did Luke observe about the behavior of atoms and their electrons?

Accepted Answer

absorb, lose

Answer

lose, absorb

Answer

lose, lose

Answer

absorb, absorb

Question 29

James is studying the behavior of electrons in his physics class. He learned that for an electron to move from a higher energy level to a lower energy level, it must do something specific. What should the electron do according to what James learned?

Accepted Answer

Release Energy

Answer

Absorb Energy

Answer

Merge with a proton

Answer

Displace a neutron

Question 30

Terry and Nikki are studying for their chemistry exam. They come across a question about the electron configuration of Nitrogen (N). They are confused between the following options. Can you help them?

Accepted Answer

1s² 2s² 2p³

Answer

1s² 2s² 2p⁴

Answer

1s² 2s² 2p⁵

Answer

1s² 2s² 2p⁶

Question 31

During a chemistry class, Atlas and Nikki were discussing about electron configurations. Atlas claimed that the electron configuration 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁶ 6s² 4f¹⁴ 5d¹⁰ 6p⁶ belongs to Gold (Au). Nikki disagreed and said it belongs to another element. Can you help them identify the correct element?

Accepted Answer

Radon (Rn)

Answer

Gold (Au)

Answer

Platinum (Pt)

Answer

Lead (Pb)

Question 32

Lucas and Jeremy are working on a science project about elements. They are currently studying Silicon (Si). Can you help them figure out the electron configuration of Silicon (Si)?

Accepted Answer

1s² 2s² 2p⁴

Answer

1s² 2s² 2p³

Answer

1s² 2s² 2p⁵

Answer

1s² 2s² 2p⁶

Question 33

Qi, Wei, Tayden, Amogh, and Owen are discussing an orbital diagram. They notice that one of the rules is being broken in the diagram. Which rule is being broken in this orbital diagram?

Accepted Answer

Hund's Rule

Answer

Aufbau Principle

Answer

Pauli Exclusion Principle

Answer

The diagram is correct.

Question 34

Lilly and Ayaan are discussing the Pauli Exclusion Principle in their chemistry class. They come across an orbital that seems to violate the principle. Which orbital are they discussing?

Accepted Answer

A

Answer

B

Answer

C

Answer

D

Question 35

Evia is studying chemistry and comes across an orbital that shows a violation of the Aufbau Principle. Which orbital is she looking at?

Accepted Answer

B

Answer

A

Answer

C

Answer

D

Question 36

Phillip, Emily, Lilly, Natalia, and Jeremy are discussing electron configurations. Which of their statements shows a violation of Hund's Rule?

Accepted Answer

Emily: Electrons will pair up in the same orbital before occupying other orbitals in the same subshell.

Answer

Phillip: Electrons in the same subshell will fill the available orbitals with parallel spins before pairing up.

Answer

Lilly: Electrons in the same subshell will occupy different orbitals with parallel spins before pairing up.

Answer

Natalia: Electrons will fill the available orbitals in a subshell with parallel spins before pairing up.

Question 37

Lilly is studying the electron configuration of an atom and finds that it is 1s²2s²2p⁶. How many electrons are present in this atom?

Accepted Answer

10

Answer

3

Answer

6

Answer

8

Question 38

During a chemistry class, Melissa and Hira were discussing the orbital notation of different elements. Melissa showed Hira an orbital notation and asked her to identify the element. What element's orbital notation did Melissa show to Hira?

Accepted Answer

Br

Answer

Ar

Answer

Cu

Answer

Cl

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