The electrons involved in bonding are found in
a) closest to the nucleus
b) in the nucleus
c) in the outermost shell
d) innermost shell
An atom that has 6 out of 8 electrons in its outermost shell will………
a) give up 2 electrons
b) gain 2 electrons
c) give up 6 electrons
d) considered stable and not react with other elements
A negative ion is formed when an atom has…
a) gained a proton
b) lost a proton
c) gained an electron
d) lost an electron
Aluminum oxide is formed from aluminum ion (Al3+) and an oxide ion (O2-). The formula of aluminum oxide is?
a) AlO
b) AlO2
c) Al2O3
d) Al2O2
The atomic number of hydrogen atom is one. The number of valence electron in Hydrogen atom is……..
a) 0
b) 1
c) 2
d) 3
The elements of group II loses……..
a) one electron
b) two electrons
c) do not lose electrons
d) three electrons
