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aniked [119]
3 years ago
9

Chlorine (cl) has an atomic number of 17. it often forms an ion by gaining 1 electron. what would its charge be?

Chemistry
2 answers:
vichka [17]3 years ago
8 0

Explanation:

When a neutral atom tends to gain an electron then it acquires a negative charge. Hence, an anion is formed.

For example, atomic number of chlorine is 17 and its electronic distribution is 2, 8, 7.

So, in order to attain stability it tends to gain one electron from a donor atom. Therefore, a chlorine ion is formed as Cl^{-1}.

Since, it gains only one electron that is why, -1 charge occurs. Whereas if an atom gains two electrons then it acquires a -2 charge and so on.

Thus, we can conclude that chlorine (Cl) has an atomic number of 17. It often forms an ion by gaining 1 electron. Its charge be -1.

Aliun [14]3 years ago
6 0

Answer:

= -1

Explanation:

  • Chlorine belongs to the halogen group in the periodic table. It has an atomic number of 17, which indicates the number of protons and electrons in a neutral atom of chlorine is 17.
  • Therefore; with an atomic number of 17, its electronic configuration will be 2:8:7.
  • Thus; to attain a stable configuration chlorine requires to gain one electron, by so doing it becomes a negatively charged ion with a charge of -1.
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