Quiz on emission spectrum of hydrogen

What is the maximum number of possible lines formed for all the transitions involving the first six energy levels in the emission spectrum for the hydrogen atom?

• 10

• 12

• 15

• 21

How many electron transitions can be obtained from the below energy levels in each of the Lyman and Balmer series?  

A. 5 Lyman Series 4 Balmer Series

B. 6 Lyman Series 4 Balmer Series

C. 6 Lyman Series 5 Balmer Series

C. 7 Lyman Series 6 Balmer Series

• 5, 4

• 6, 4

• 6, 5

• 7, 6

The emission spectrum of hydrogen gas consists of several series of discrete lines because

• An electron in a permitted orbital will radiate energy.

• Electrons move from higher energy levels to lower energy levels.

• The electrons have enough energy to escape from the hydrogen atoms to form ions.

• The electrons in hydrogen atoms move from the ground state to the excited state.

In the atomic emission spectrum of hydrogen, how many lines are formed due to the transitions of electrons between the main energy levels n=1 to n=4?

• 4

• 5

• 6

• 7

When a copper compound is heated strongly in a Bunsen flame, it emits a greenish-blue flame because

• Copper atoms form copper ions

• Copper metal forms copper vapour

• Energy is emitted by electrons in copper atoms

• Energy is absorbed by electrons in copper atoms

The figure below shows the lines in the Lyman series of the hydrogen spectrum. This line X is caused by the transition of electrons:

• From n=2 to n=1

• From n=3 to n=1

• From n=3 to n=2

• From n=1 to n=∞

When hydrogen gas is placed under low pressure in a tube and a high voltage applied, it produces a line spectrum because 1. hydrogen atoms have discrete energy levels

2. the transition of electrons can only occur when certain amounts of energy are emitted

3. electrons in hydrogen atoms are all in the ground state

• 1 only

• 1 and 2 only

• 2 and 3 only

• 1,2 and 3

When an electric discharge is passed through helium gas at a low pressure, 1. the helium atoms absorb energy

1. 2. electromagnetic radiation of certain wavelength is emitted.

3. A continuous spectrum is produced.

• 1 only

• 1 and 2 only

• 2 and 3 only

• 1,2 and 3

The hydrogen emission spectrum is produced when 1.Electrons move from the excited state to the ground state

2. Hydrogen atoms combine to form hydrogen molecules

3.Electrons are promoted to energy levels which are further from the atomic nucleus

• 1 only

• 1 and 2 only

• 2 and 3 only

• 1,2 and 3

The figure below shows the hydrogen spectrum in the visible region. Which of the following statements is correct? 

The figure below shows the hydrogen spectrum in the visible  region. 

 

Which of the following statements is correct?

1. 1. L₁ has the shortest wavelength

2. 2. The wavelength increases from L₁ to L₅

3. 1. The wavelength of L₂ is shorter than the wavelength of L₃

• 1 only

• 1 and 2 only

• 2 and 3 only

• 1,2 and 3