monoatmic
good oxidizing agents
highly electropositive
electron donors
Correct answer is B
No explanation has been provided for this answer.
The electronic configuration of Mg 2+ is
ls 22s 22P 63s23P2
Is22s22P6
ls22s22p63s2
ls22s22P4
Correct answer is B
No explanation has been provided for this answer.
A hydrogen atom which has lost an electron contains
one proton only
one neutron only
one proton and one neutron
one proton, one electron and one neutron
Correct answer is A
No explanation has been provided for this answer.
If the elements X and Y have atomic numbers 11 and 17 respectively, what type of bond can they form?
Dative
Covalent
Ionic
Metallic
Correct answer is C
No explanation has been provided for this answer.
I and lll only
ll and lV only
l, ll and lll only
l, ll, lll and lV
Correct answer is D
No explanation has been provided for this answer.