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QUESTION 7 An ion has a +2 charge and 22 electrons. Which element is it? Write the elements atomic symbol (such as He for he
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Answer #1

7)

the ion got 22 electrons .

+2 charge means it lost 2 electrons.

therefore total electrons for the ground state will be 22+2 = 24.

24 electrons means that atomic number is 24.

The Element with Atomic Number 24 is Chromium , Cr .

Answer is Chromium , Cr .

8)

Answer:

  • Potassium , K
  • Calcium , Ca
  • Nickel , Ni

Krypton , Kr is a colorless, odorless, tasteless noble gas.

Nitrogen is a nonmetal.

Chlorine is a non-metal.

PLEASE GIVE ME A THUMBS UP.

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