Atoms of element X (with 2 electrons in the outer shell)....
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
Correct answer is A
The compound formed by a mixture of X and Y will be XY2 not XY.
The elements that belong to the third period of periodic table are ...
MnO2(s) + xHCl(aq) → MnCl2(aq) + yH2O(l) + zCl2(g) In theequation above, what are the values of x...
The most abundant element on the earth's crust is ...
Chromatography is used to separate components of mixture which differ in their rates of ? ...
The noble gases owe their inactivity to ...
The following substances are heavy chemicals except ...
What is the chemical symbol for Hydrogen? ...
The rate of a chemical reaction is NOT affected by one of these factors ...