5. Electron Test Period 8

25 Questions | By Brielmannh | Updated: Mar 21, 2022 | Attempts: 55

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5. Electron Test Period 8 - Quiz

Questions and Answers

1.

What element does the following Aufbau order likely represent?
- A.
  
  Neon (Ne)
- B.
  
  Sodium (Na)
- C.
  
  Nitrogen (N)
- D.
  
  Argon (Ar)
2.

The electron was first proposed to exist based primarily on the results of which experiment?
- A.
  
  Thomson's cathode ray tube experiment
- B.
  
  Rutherford's gold foil experiment
- C.
  
  Bohr's interpretation of the balmer formula
- D.
  
  Frankensteins Transylvania experiments with lightning and corpses
3.

The electron was first proposed to exist outside the nucleus based on which key experiment?
- A.
  
  Thomson's cathode ray tube experiment
- B.
  
  Rutherfords gold foil experiment
- C.
  
  Bohrs interpretation of the balmer formula
- D.
  
  Tony Starks creation of a new element for his arc reactor
4.

Which key experiment or observation resulted in the concept that electrons reside in shells?
- A.
  
  Thomson's cathode ray tube experiment
- B.
  
  Rutherford's gold foil experiment
- C.
  
  Bohr's interpretation of the Balmer Formula as it relates to atomic emission spectra
- D.
  
  Professor Utonium's experiments with chemical x. leading to the creation of the power puff girls
5.

What is the relationship between energy, frequency and wavelength for the electromagnetic spectrum?
- A.
  
  As the wavelength of light increases, the frequency decreases and the energy decreases
- B.
  
  As the wavelength of light increases, the frequency decreases and the energy increases
- C.
  
  As the wavelength of light increases, the frequency increases and the energy decreases
- D.
  
  As the wavelength of light increases, the frequency increases and the energy increases
6.

Which units, in order, refer to wavelength, frequency, and energy?
- A.
  
  Meters, 1/s, and joules
- B.
  
  Meters, seconds, and joules
- C.
  
  Meters, hertz, and candelas
- D.
  
  Meters, amperes, and joules
7.

What frequency of light is produced when a hydrogen electron travels from the 9th to the fourth shell? Please choose the closest answer.
- A.
  
  0.0515 Hz
- B.
  
  1818 Hz
- C.
- D.
- E.
8.

How much energy is released when a hydrogen electron travels from the fourth shell to the second shell?To solve this you may use any method you like but it is suggested you use the Wagner-Kostoss formula, named after the students who independently derived the same formula:Choose the closest answer
- A.
  
  486 joules
- B.
- C.
- D.
- E.
9.

Which of the following atoms contains an unfilled third shell of electrons?
- A.
  
  Zinc, atomic number 30
- B.
  
  Copper, atomic number 29
- C.
  
  Gold, atomic number 79
- D.
  
  Uranium, atomic number 92
10.

The manhattan project required large quantities of Uranium (VI) fluoride, which includes the uranium hexacation .How many total electrons are in the uranium hexacation?
- A.
  
  86
- B.
  
  92
- C.
  
  98
- D.
  
  2
11.

How many electrons are in the fourth shell of the yttrium anion (Y-)
- A.
  
  2
- B.
  
  6
- C.
  
  8
- D.
  
  10
12.

Based on the aufbau order shown below, what is the ending electron configuration of element number 250? Electron ConfigurationPattern: s² p⁶ d¹⁰ f¹⁴ g¹⁸ h²² i²⁶… total running count of electrons1s² 2 (He) 2s² 4 (Be)2p⁶ 3s² 12 (Mg) 3p⁶ 4s² 203d¹⁰ 4p⁶ 5s² 38 4d¹⁰ 5p⁶ 6s² 564f¹⁴ 5d¹⁰ 6p⁶ 7s² 88 5f¹⁴ 6d¹⁰ 7p⁶ 8s² 1205g¹⁸ 6f¹⁴ 7d¹⁰ 8p⁶ 9s² 170 6g¹⁸ 7f¹⁴ 8d¹⁰ 9p⁶ 10s² 220
- A.
- B.
- C.
- D.
13.

Element 121 is likely to be discovered in the next ten years or so. What will its ending electron configuration be?The table below may be of assistance: Electron ConfigurationPattern: s² p⁶ d¹⁰ f¹⁴ g¹⁸ h²² i²⁶… total running count of electrons1s² 2 (He) 2s² 4 (Be)2p⁶ 3s² 12 (Mg) 3p⁶ 4s² 203d¹⁰ 4p⁶ 5s² 38 4d¹⁰ 5p⁶ 6s² 564f¹⁴ 5d¹⁰ 6p⁶ 7s² 88 5f¹⁴ 6d¹⁰ 7p⁶ 8s² 1205g¹⁸ 6f¹⁴ 7d¹⁰ 8p⁶ 9s² 170 6g¹⁸ 7f¹⁴ 8d¹⁰ 9p⁶ 10s² 220
- A.
  
  5g1
- B.
  
  8s1
- C.
  
  8s3
- D.
  
  7d1
14.

Visible light has wavelengths from 400 to 700 nm. Which wavelength below is dangerous?The chart below may be helpful:
- A.
  
  300 nm
- B.
  
  500 nm
- C.
  
  800 nm
- D.
  
  1 meter
15.

A hydrogen electron starts in the 9th shell and emits light with a wavelength of 11,306.4 nm. What inner shell did it end up in?
- A.
  
  1
- B.
  
  2
- C.
  
  3
- D.
  
  4
- E.
  
  5
- F.
  
  6
- G.
  
  7
- H.
  
  8
- I.
  
  9
- J.
  
  10
16.

Which has the lowest mass: an electron, a proton, or a neutron?
- A.
  
  Electron
- B.
  
  Proton
- C.
  
  Neutron
- D.
  
  They are all exactly the same
17.

An electron exhibits the properties of both matter and energy
- A.
  
  True
- B.
  
  False
18.

Based on the electron dot structure of fluorine and recognizing that unpaired electrons are bonding electrons, we would predict that a fluorine atom is likely to form ___ chemical bond(s).
- A.
  
  1
- B.
  
  2
- C.
  
  3
- D.
  
  4
- E.
  
  7
- F.
  
  6
19.

The magnesium dication is isoelectronic with the _____ atom.(isoelectronic means "equal number of electrons")
- A.
  
  Neon
- B.
  
  Argon
- C.
  
  Silicon
- D.
  
  Sodium
20.

Which of the following would be the correct way to represent an iodine anion (I^-) using the Aufbau order?
- A.
  
  1s^2 2s^2 2p^6 3s^2 3p^6 3d^10 4s^2 4p^6 4d^10 5s^2 5p^6
- B.
  
  1s^2 2s^2 2p^6 3s^2 3p^6 3d^10 4s^2 4p^6 4d^10 5s^2 5p^5
- C.
  
  1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^10 4p^6 5s^2 4d^10 5p^6
- D.
  
  1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^10 4p^6 5s^2 4d^10 5p^5
21.

An electron is attracted to ____________
- A.
  
  Another electron
- B.
  
  A proton
- C.
  
  A neutron
- D.
  
  The negative pole of a magnet
22.

Visible light has a wavelenth between 400 and 700 nanometers. Therefore, when an hydrogen electron travels from the second shell to the first shell, it releases energy in the form of visible light.
- A.
  
  True
- B.
  
  False
23.

The exact position and velocity of an electron can never be precisely determined. This is the essence of the _______________
- A.
  
  Heisenberg Uncertainty Principle
- B.
  
  Aufbau Principle
- C.
  
  Pauli Principle
- D.
  
  Misenti Principal
24.

When a hydrogen electron moves from the second shell to the fifth shell, it releases energy and forms a hydrogen cation.
- A.
  
  True
- B.
  
  False