3. Draw Ft 4. Draw Mg 5. Draw F1 6. Draw Sr? 7. Draw 02
8. Draw Li 9. Draw S2 10. Draw Li
11. Draw Na" 12. Draw
13. Draw Cr 14. Draw Ca"15. Draw Cr
16. Draw Al 17. Draw N'
18. Draw Ba“ 19. Draw sa
20. Draw K 21. Draw Oº 22. Draw K
23. Draw Cm 24. Draw Sr. 25. Draw cm

3. Draw Ft 4. Draw Mg 5. Draw F1

6. Draw Sr? 7. Draw 02

8. Draw Li 9. Draw S2 10. Draw Li

11. Draw Na" 12. Draw

13. Draw Cr 14. Draw Ca"15. Draw Cr

16. Draw Al 17. Draw N'

18. Draw Ba“ 19. Draw sa

20. Draw K 21. Draw Oº 22. Draw K

23. Draw Cm 24. Draw Sr. 25. Draw cm

Explanation:

Repeat again, thank you for your free point

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Thank you for your free point

Thank you for your free point

Thank you for your free point

Thank you for your free point

Thank you for your free point

Thank you for your free point

Thank you for your free point

Thank you for your free point

Thank you for your free point

Thank you for your free point

Thank you for your free point

Thank you for your free point

Thank you for your free point

Thank you for your free point

the potential energy of the reactants is 200j.

from the energy diagram, the energy of the product formed is 350j; this means that, this reaction is an endothermic reaction, because it absorbs energy from its environment.

answer:

the answer is 6 valence electrons.

explanation:

valence is the # of electrons on the outer most shell of an atom.

oxygen has 6.

although, the valency of oxygen is 2, because it only needs to make 2 covalent bonds, or gain 2 electrons, to achieve the stable octet configuration of a noble gas.

that's it!

if you need further assistance, let me know: )

~ trueboss72