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NathanAx's Profile
Star Rating: [2 
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Member Since: Apr 11, 2013
Total # Questions Provided: 1
Total # Answers Provided: 0
]
Member Since: Apr 11, 2013
Total # Questions Provided: 1
Total # Answers Provided: 0
abr
11
2013
átomo neutro de cálcio se transformar
1)para que um átomo neutro de cálcio se transforma em Ca2+(2+ está em cima do a) ele deve ? a)Perder 2 protons b)perder 2 eletrons c)receber 2 eletrons d)receber 2 protons e)perder 1 próton quero...
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