chemistry help please?

M

Miss Tiffany

New member
Whats is the numbers of protons, neutrons and electrons in an ion

54-atomic mass 25- atomic # Cr molecular compound

which of the following are ionic or molecular

1.Li2SO4
2.K2CO3
3.Cu(I)F
4.N2O5
5.CCl4
6.CO2
7.Si2O4
 
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