Which of the following would NOT be soluble in water? A) GaS
B) Ba(OH)2
C) FePO4
D) LiCN

Which of these negative Ion's would be considered soluble?
A) Cr207
B) CrO4
C) PO4
D) CN

If a hydrogen atom is neutral, it must also have  one electron. an oxygen atom (o) has an atomic number of eight (8). this means a neutral oxygen atom has eight protons and eight electrons. the element actium (ac) has an atomic number of 89, so it has 89 protons and 89 electrons in a neutral atom

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