Which of the following pairs of elements belong to the same period?
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An anion is a negatively charged ion. An element can become an anion if it takes an extra electron such that it has one more electron than protons.
Atoms would preferentially taken an extra electron so that it can have a full octet and be more stable.
are some of the few elements that would have a -1 charge.
Atoms would preferentially taken an extra electron so that it can have a full octet and be more stable.