CHAPTER 2.1 BOHR'S ATOMIC MODEL & 2.2 QUANTUM MECHANICS

State the transition of line T in Brackett series.

• n=5 to n=3

• n=6 to n=4

• n=7 to n=4

• n=6 to n=3

Bohr's atomic model can only be used to explain the line spectrum of atom or ions contains only ONE electron.

Which of the following CAN be explained using Bohr's atomic model?

• H⁺

• He

• Li²⁺

• Be⁺

Which of the following explain the dual nature of an electron?

• de Broglie's postulate

• Heisenberg's uncertainty principle

Which of the following describe the shape of orbitals?

• principle quantum number, n

• angular momentum quantum number, l

• magnetic quantum number, m

• electron spin quantum number, s

When n=3 and l=2, what is the subshell?

• 3s

• 3p

• 3d

• 3f

How many orbitals are there in 2p subshell?

• 1

• 3

• 5

• 7

Determine the maximum number of electrons in 2s subshell.

• 2

• 6

• 10

• 14