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Potassium (K) and copper (Cu) are both in period 4. They both have _____.

ASimiliar properties

B)The same number of protons

C)Four electron shells

D)The same number of electrons

Verified Answer :

Answer:The answer is C.

Explanation:hope this helps you!

nkirotedoreen46

Answer:

They both have Four electron shells

Explanation:

  • The periodic table arranges elements into columns called groups and rows called periods.
  • Elements in the same group share similar chemical and physical properties.
  • For example, elements in group 1 called alkali metals have similar properties. They include sodium, lithium, and potassium among others.
  • On the other hand elements in the same period have the same number of energy levels or electron shells. For example, elements in period 4 have four energy levels.

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