Select the correct answer.

why was niels bohr’s atomic model superior to all the earlier models❔

a. it proved that the atom was indivisible and therefore the smallest unit of matter.
b. it showed how the electron could orbit the nucleus without falling into it.
c. it was the first to show that the atom had no net charge.
d. it used wave behavior to explain the positions of electrons around the nucleus.

B

Explanation:

Neils Bohr atomic model suggested that the extranuclear part of an atom consists of electrons in specific spherical orbits around the nucleus.

in the given question, the partial pressure is calculated by using the ideal gas equation, that is, pv = nrt

here, p is pressure, v is volume = 25 l, n is number of moles = 0.0104 moles, r is gas constant = -0.0821 l.atm / mol.k

t is temperature = 273 k

p = nrt / v

p = (0.0104 mol × 0.0821 l.atm / mol.k × 273 k) / 25 l

= 0.0093 atm

14 days is the half-life of phosphorus-32