JAMB - Chemistry (1991 - No. 9)
Atoms of element X (with 2 electrons in the outer shell). combine with atoms of Y (with 7 electrons in the outer shell). Which of the following statements is FALSE? The compound formed?
has formula XY
is likely to be ionic
contains X2+ ions
contains Y- ions
Vysvětlení
The compound formed by a mixture of X and Y will be \(XY_{2}\) not XY.