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Predicting Ionic Charge

Predicting Ionic Charge. Atoms lose or gain electrons to achieve the stability of the closest noble gas. To predict the charge of an element:. Find the closest noble gas to the element.

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Predicting Ionic Charge

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  1. Predicting Ionic Charge

  2. Atoms lose or gain electrons to achieve the stability of the closest noble gas.

  3. To predict the charge of an element: • Find the closest noble gas to the element. 2. Decide whether it needs to lose or gain electrons to have the same number of electrons as that noble gas. 3. If it gains electrons, it becomes a negative ion. If it loses electrons, it becomes a positive ion. 4. Count how many electrons it loses or gains to determine the charge.

  4. Here’s an example. What is the most likely charge for oxygen? • Find the closest noble gas to the element.

  5. Noble Gases

  6. Find the closest noble gas to the element. 2. Decide whether it needs to lose or gain electrons to have the same number of electrons as that noble gas.

  7. Find the closest noble gas to the element. 2. Decide whether it needs to lose or gain electrons to have the same number of electrons as that noble gas. 3. If it gains electrons, it becomes a negative ion. If it loses electrons, it becomes a positive ion. 4. Count how many electrons it loses or gains to determine the charge.

  8. Gains 2 electrons O-2

  9. Find the closest noble gas.

  10. Find the closest noble gas to the element. 2. Decide whether it needs to lose or gain electrons to have the same number of electrons as that noble gas. 3. If it gains electrons it becomes a negative ion. If it loses electrons it becomes a positive ion. 4. Count how many electrons it loses or gains to determine the charge.

  11. Loses 1 electron K+1

  12. Loses 3 electrons B+3

  13. Gains 3 electrons P-3

  14. Metals are elements that lose electrons Nonmetals are elements that gain electrons

  15. metalloids metals noble gases nonmetals

  16. ?

  17. ?

  18. ?

  19. ?

  20. ?

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