Which of the following halogen/s is /are in liquid state at room temperature?
a) iodine
b) chlorine
c) bromine
d) both a and b
Which of the following halogen/s is /are in solid state at room temperature?
a) astatine
b) iodine
c) bromine
d) both a and b
Which of the following halogen is most electronegative?
a) fluorine
b) chlorine
c) bromine
d) iodine
Which of the following halogen is radioactive with short half-lives?
a) astatine
b) chlorine
c) bromine
d) iodine
The electronic configuration of halogens is…
a) ns1
b) ns2
c) ns2, np6
d) ns2, np5
Halogens need……electron/s to complete its valence shell.
a) one
b) two
c) three
d) four
