Free Printable Atomic Structure

1.

Choose the highest energy involved when an electron makes a transition

a)

n = 4 to n = 3

b)

n = 2 to n = 1

c)

n = 4 to n = 2

d)

n = 3 to n = 1

2.

Calculate the wavelength, ƴ, for the fourth line in Balmer series

a)

432 nm

b)

654 nm

c)

410 nm

d)

486 nm

3.

The following statements are true, EXCEPT

a)

The energy of a photon is proportional to its wavelength

b)

A line spectrum is produced when light is emitted from an excited atom

c)

The region in which an electron is most likely to be found is called an orbital

d)

Light is composed of photons of discrete energy

4.

Calculate energy required to excite an electron from n = 2 to n = 4

a)

$2.\ 05\ x\ 10^6\ J$

b)

$2.74\ x\ 10^6\ J$

c)

$4.09\ x\ 10^{-19}\ J$

d)

$5.45\ x\ 10^{-19}\ J$

5.

The light emitted by a hydrogen atom with a wavelength of
$434\ x\ 10^{-9}m,$ corresponds to a transition of its electron from

a)

n = 4 to n = 2

b)

n = 5 to n = 2

c)

n = 6 to n = 2

d)

n = 3 to n = 2

6.

Which of the following represents an electron in 3p orbital?

a)

n = 3, l = 0, m = +1, s = +1/2

b)

n = 3, l = 2, m = +2, s = +1/2

c)

n = 3, l = 1, m = +1, s = +1/2

d)

n = 3, l = 0, m = 0 , s = +1/2

7.

Electronic configuration of copper atom is $1s^22s^22p^63s^23p^64s^13d^{10}$ . Determine the number of electron in copper atom at its ground state if the azimuthal quantum number, l is 0

a)

9

b)

7

c)

6

d)

10

8.

Maximum number of electron that can occupy 3d orbital is

a)

2

b)

6

c)

8

d)

10

9.

The energy of the electron in a hydrogen atom is determined by ;

I. the principle quantum number

II. the magnetic quantum number

III. the electron spin quantum number

a)

I only

b)

I and II

c)

II and III

d)

I, II and III

10.

Degenerate orbital have

I. the same value of the azimuthal quantum number, l

II. the same energy

III. the differences values of the s quantum number but the same set of quantum numbers, n, l and m

a)

I only

b)

I and II

c)

II and III

d)

I, II and III

Atomic Structure

Total questions: 10

Worksheet time: 30mins

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