The atomic number of Astatine is……..
a) 9
b) 17
c) 35
d) 85
The electronic configuration of Astatine is…
a) 1s2, 2s2, 2p5
b) [Ne], 3s2, 3p5
c)[Xe],4f14,,5d10 6s2, 6p5
d) [Ar],3d10 4s2, 4p5
The physical state of Astatine is…..
a) pale yellow gas
b) greenish gas
c) dark red liquid
d) black solid
The boiling point of Astatine is…….°C.
a) -188.2
b) -34.04
c) 58.8
d) 336.8
The atomic radius of Astatine is………pm.
a) 71
b) 99
c) 114
d) 150
The density of Astatine is………g/cm3.
a) 0.0017
b) 0.0032
c) 3.1028
d) unknown
