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11 October, 22:55

The electron dot diagram for a neutral atom of chlorine (atomic number 17) is shown below. Which of the following symbols represents a chlorine ion with a stable arrangement of eight valence electrons?

A. 35Cl1-

B. 35Cl2-

C. 35Cl1+

D. 35Cl

...

: C:

.

this is the symbol

+1
Answers (1)
  1. 12 October, 01:29
    0
    The answer is A.

    Chlorine is found in group7A of the periodic table. This means that when they are neutral, (electrons and protons are equal), they lack 1 electron to complete the octet or eight valence electrons to be stable. This will result in Chlorine having to gain an electron. Since it gained an electron, that means the electrons outnumber the protons by 1, which will result in a negative charge of - 1.
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