What Do You Know About Lewis DOT Diagrams?
Regardless of whether you call them Lewis structures, electron dot structures, Lewis electron dot structures, Lewis dot structures, Lewis dot diagrams, or Lewis dot formulas, it wouldn't make any difference in light of the fact that the utilization is indistinguishable.
They are illustrations utilized to demonstrate a specific bonding concept in the chemistry branch of science. To discover more, take this short test.
- 1.
What is another term for Lewis dot diagrams?
- A.
Electron photon structures
- B.
Electron bond structures
- C.
Electron atom structures
- D.
Electron dot structures
Correct Answer
A. Electron photon structures -
- 2.
When was the award introduced?
- A.
1916
- B.
1920
- C.
1926
- D.
1930
Correct Answer
A. 1916Explanation
The award was introduced in 1916.Rate this question:
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- 3.
Which of these represents a shared pair of electron in a Lewis dot structure?
- A.
Dot
- B.
Point
- C.
Line
- D.
Circle
Correct Answer
C. LineExplanation
In a Lewis dot structure, the shared pair of electrons is represented by a line. This line indicates the sharing of electrons between two atoms, forming a covalent bond. The other options, dot, point, and circle, do not accurately represent the concept of a shared pair of electrons in a Lewis dot structure.Rate this question:
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- 4.
What does a Lewis structure represent between atoms of a molecule?
- A.
Heat
- B.
Transfer
- C.
Bonding
- D.
Energy
Correct Answer
C. BondingExplanation
A Lewis structure represents the bonding between atoms of a molecule. It shows how the atoms are connected to each other through chemical bonds, whether they are single, double, or triple bonds. The Lewis structure also indicates the arrangement of electrons around each atom, including lone pairs and shared pairs of electrons. This representation helps in understanding the overall structure and properties of the molecule, as well as predicting its reactivity and behavior.Rate this question:
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- 5.
As what must each electron first be placed?
- A.
Lone pairs
- B.
Valence electrons
- C.
Absolute pairs
- D.
Covalent bonds
Correct Answer
A. Lone pairsExplanation
Each electron must first be placed as a lone pair. Lone pairs are pairs of electrons that are not involved in bonding and are found in the outermost energy level of an atom. These electrons are not shared with any other atom and are typically represented as dots around the atom's symbol. Before forming any covalent bonds or participating in any chemical reactions, electrons need to be placed as lone pairs.Rate this question:
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- 6.
In form of which of these does a valence electron absorb or release energy?
- A.
Dot
- B.
Photon
- C.
Proton
- D.
Electron
Correct Answer
B. PhotonExplanation
Valence electrons are the outermost electrons in an atom that are involved in chemical bonding. They can absorb or release energy in the form of photons. Photons are packets of energy that can be absorbed by valence electrons, causing them to move to higher energy levels or released by valence electrons when they move to lower energy levels. This process is responsible for various phenomena such as the absorption or emission of light by atoms and molecules.Rate this question:
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- 7.
How many valence electrons have the boron group?
- A.
3
- B.
5
- C.
7
- D.
10
Correct Answer
B. 5Explanation
The boron group refers to Group 13 elements in the periodic table, which includes boron, aluminum, gallium, indium, and thallium. These elements have 3 valence electrons, which are the electrons in the outermost energy level of an atom that participate in chemical bonding. However, the correct answer provided is 5, which is incorrect.Rate this question:
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- 8.
What represents quantum number?
- A.
Q
- B.
N
- C.
X
- D.
Z
Correct Answer
B. NExplanation
The quantum number "n" represents the principal quantum number in quantum mechanics. It determines the energy level or shell of an electron in an atom. The higher the value of "n", the higher the energy level and the farther the electron is from the nucleus. This quantum number helps to define the size and energy of an electron's orbital within an atom.Rate this question:
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- 9.
How many valence electrons has phosphorus?
- A.
5
- B.
10
- C.
15
- D.
20
Correct Answer
A. 5Explanation
Phosphorus has 5 valence electrons. Valence electrons are the electrons in the outermost energy level of an atom and determine the chemical properties of an element. Phosphorus is in group 15 of the periodic table, which means it has 5 valence electrons.Rate this question:
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- 10.
Which is a noble gas?
- A.
Argon
- B.
Lithium
- C.
Oxygen
- D.
Hydrogen
Correct Answer
A. ArgonExplanation
Argon is a noble gas because it belongs to the group of elements known as noble gases, which are characterized by their stable electron configurations. Noble gases have full outer electron shells, making them highly stable and unreactive. Argon specifically has a full outer electron shell with eight electrons, making it chemically inert. In contrast, lithium, oxygen, and hydrogen are not noble gases as they have different electron configurations and are more reactive.Rate this question:
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Mar 22, 2023Quiz Edited by
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Apr 22, 2018Quiz Created by
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