If calcium has two valence electrons and fluorine has seven, how many fluorine atoms are needed to form an ionic bond with calci um
2 answers:
There are 7 i just took the test
Fluorine needs one electron to fill its orbital shell. It needs 8 valence electrons
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Answer:
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Answer:
0.234 moles
Explanation:
moles of Al2O3 = mass / molar mass
moles of Al2O3 = 23.87g / 102.0g/mol
moles of Al2O3 = 0.234 moles (to three significant figures)
Answer:
8.801×10^-18 moles Ca
Explanation:
5.3 X 10^6atoms* (1mol/6.022*10^23) = 8.801×10^-18 moles Ca
DEEZ NUTS ha gattti -sorry
