Graded Warmup 1. Metals form positive ions

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Presentation transcript:

Graded Warmup 1. Metals form positive ions 2. Nonmetals in group 15 have -3 charge 3. How many valence electrons are on each level after the first? 8 4. Na-O ionic 5. Li-F ionic 6. C-C covalent 7. N-F covalent 8. Usually soluble ionic 9. High melting point ionic/metallic 10. Free moving electrons metallic

Graded warm-up continued 11. share electrons equally nonpolar 12. molecules show a attraction polar 13. Water polar 14. PI3 look at your paper 15. H2Se look at your paper 16.Magnesium Iodide formula MgI2 17. KBr chemical name Potassium bromide 18. Aluminum sulfate formula Al2(SO4)3 19. BaCl2 chemical name Barium chloride 20. Ca(NO3)2 chemical name Calcium nitrate

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