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myrzilka [38]
3 years ago
5

Choose the correct abbreviation of potassium (K) written in its noble gas configuration

Chemistry
1 answer:
Dmitry [639]3 years ago
5 0

Answer: [Ar]4s1

Explanation: Potassium (K) is an element with atomic number 19, thus it contains 19 electrons. It is  a metal which readily loses its electrons to acquire stable configuration of Argon (Ar) which has 18 electrons with completely filled subshells.

Ar:18:1s^22s^22p^63s^23p^63d^{10}

K:19:[Ar]4s^1

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