Which of the following equipment is not used to detect radioactivity?
Wilson cloud chamber
Geiger- muller counter
Mass spectrometer
Photographic plate
Correct answer is C
No explanation has been provided for this answer.
metallic bonding
ionic bonding
covalent bonding
dative bonding
Correct answer is B
No explanation has been provided for this answer.
A metal X forms two chlorides with the formulae XCI2 and XCI3. Where is X in the Periodic Table?
Group ll
Group llI
d-block
s-block
Correct answer is C
No explanation has been provided for this answer.
One of the characteristics of transition metals is
reducing ability
ductility
ability to conduct electricity
formation of coloured ions
Correct answer is D
No explanation has been provided for this answer.
A nuclide emits a beta-particle (e) in the process, that atomic number
increases by 1 while the mass numer remains constant
decreases by 2 while the mass number remains constant
remains constant while the mass number decreases by 2
remains constant while the mass number increases by 1
Correct answer is A
No explanation has been provided for this answer.