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Ainat [17]
4 years ago
10

What is the maximum number of electrons that can be contained in the first, second, third, and fourth energy levels, respectivel

y? Express your answer as integers separated by commas. View Available Hint(s)
Chemistry
1 answer:
Marysya12 [62]4 years ago
5 0

Answer:First energy level = 2electrons

Second energy level = 8 electrons

Third energy level = 18 electrons

Fourth energy level = 32 electrons

Explanation: Each energy level can contain up to 2n^2 electrons. Where n indicates number of level

For first energy level where n=1

Number of electrons = 2(1)^2 = 2

For second energy level where n =2 Number of electrons = 2(2)^2 =8

For Third energy level where n=3

Number of electrons=

2(3)^2 = 18

For fourth energy level where n=4

Number of electrons =

2(4)^2 = 32

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The electron configuration of an element is 1s22s22p63s1. Describe what most likely happens when an atom of this element comes n
Anastasy [175]

Answer:

The element with electron configuration 1s² 2s² 2p⁶ will most likely not react with an element having seven Valence electrons.

The electron configuration of the element in discuss is 1s² 2s² 2p⁶.

The element has enough electrons to fill it's energy level, n = 2 shell.

In essence, the element in discuss is unreactive as it has attained it's octet configuration and as such is neither in need of an electron nor ready to donate an electron.

As such, although an atom having seven Valence electrons is highly electronegative and as such is an electron attractor, the element with the full octet configuration does not react with it.

This unreactive nature of noble gases is attributed to the full octet configuration of noble gases.

P.S: The electron configuration above is the electron configuration of Neon, Ne.

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3 years ago
Molecules formed by atoms of two or more different molecules are _______.
mezya [45]

Answer:Diatomic molecules i think

Explanation:

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3 years ago
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What does isoelectronic mean
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4 years ago
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3 years ago
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What is the mass of potassium chloride when 6.75 g of potassium reacts with an excess of chlorine gas? the balanced chemical equ
lorasvet [3.4K]
The balanced equation for the above reaction is;
2K + Cl₂ ---> 2KCl
Stoichiomtery of K to KCl is 2:2
Potassium is the limiting reactant which is fully consumed in the reaction. The amount of product formed depends on amount of limits reactant present.
Number of moles of K reacted - 6.75 g/ 39 g/mol = 0.17 mol
Therefore number of KCl moles formed - 0.17 mol
Mass of KCl formed - 0.17 mol x 74.5 g/mol = 12.67 g 
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3 years ago
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