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.

you need to take a look at the periodic system in order to sort these elements into pairs that would most likely exhibit similar chemical properties. first, you need to find elements that are found in the same group (groups are vertical in the periodic system), and then to see whether they have the same valence number. if they meet these criteria, they will have similar properties.

the first pair: ne (neon) and kr (krypton), are noble gases found in group 8

the second pair: li (lithium) and k (potassium), found in group 1

the third pair: s (sulfur) and te (tellurium), found in group 6