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ololo11 [35]
3 years ago
9

Electrons located in the outermost shell of an atom are called

Chemistry
2 answers:
VLD [36.1K]3 years ago
8 0

Answer:

Valence electrons

Explanation:

Valence electron is the number of electrons in the outermost shell of an atom. Valance electrons are equal to the group number of the elements in the periodic table. For example, halogens are located in group 7 of the periodic table, and they have 7 valence electrons. Also alkali metals located in group 1 have 1 valence electron. In the formation of an ionic bond valence electrons are either lost or gained, and in covalent bonds valence electrons are shared.

Varvara68 [4.7K]3 years ago
7 0
Valence electrons are the electrons located in the outermost shell
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Answer:

The value of K_p at 4224 K is 314.23.

Explanation:

O_2(g)\rightleftharpoons 2O(g)

Initially

4.97 atm            0

At equilibrium

4.97 - p               2p

At initial stage, the partial pressure of oxygen gas = =4.97 atm

At equilibrium, the partial pressure of oxygen gas = p_{O_2}=0.28 atm

So, 4.97 - p = 0.28 atm

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At equilibrium, the partial pressure of O gas = p_{O}=2p=2\times 4.69 atm=9.38 atm

The expression of K_p is given as :

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K_p=\frac{(9.38 atm)^2}{0.28 atm}=314.23

The value of K_p at 4224 K is 314.23.

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