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Vadim26 [7]
3 years ago
14

Sodium (Na) and potassium (K) are in the same group in the periodic table. Sodium is in the 11th position. How many valence elec

trons does potassium have?
Social Studies
2 answers:
RSB [31]3 years ago
6 0
Potassium has 1 valence electron
shepuryov [24]3 years ago
4 0

<u>Answer:</u> Potassium has 1 valence electron.

<u>Explanation:</u>

Valence electrons are defined as the electrons which are present in the last shell of the atom. They are identified by the electronic configuration of atom.

Sodium is the 11th element of the periodic table. It belongs to Group 1 and period 3. Electronic configuration of this element is 1s^22s^22p^63s^1

Sodium has 1 electron in the last shell. Thus, it has 1 valence electron.

Potassium is the 19th element of the periodic table. It belongs to Group 1 and period 4. Electronic configuration of this element is 1s^22s^22p^63s^23p^64s^1

Potassium has 1 electron in the last shell.

Thus, it has 1 valence electron.

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