Free Printable Atomic structure

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Atomic structure

Total questions: 21

Worksheet time: 32mins

Name

Class

Date

Choose the highest energy involved when an electron makes a transition

n = 4 to n = 3

n = 2 to n = 1

n = 4 to n = 2

n = 3 to n = 1

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

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

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

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

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

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

Maximum number of electron that can occupy 3d orbital is

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

I only

I and II

II and III

I, II and III

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

I only

I and II

II and III

I, II and III

What is the total number of atomic orbitals in an atom with the principal quantum number n =3

The electronic configuration of the₇N^3- ion is

1s² 2s² 2p³

1s² 2s²2p⁶

1s² 2s² 2p³2p⁶ 3s² 3p²

1s² 2s² 2p³2p⁶ 3s² 3p⁶

What is the orbital designation corresponding to the quantum numbers : n=4, l = 2, m=0

10.

After filling up the 3p orbital , what kind of orbital must electron occupy?

a spherically-shaped orbital

a dumb-bell shaped orbital

either 4s or 3d orbital

an orbital of lower energy than 3p

11.

Iron has a proton number of 26. What is the electronic configuration of Fe²⁺?

[Ar] 4s² 3d⁶

[Ar] 3d⁶

[Ar] 4s² 3d⁴

[Ar] 4s² 3d⁵

12.

The electron configurations for the ion Sn⁴⁺ is

[Kr] 4d¹⁰

[Kr] 4d¹⁰ 5s¹

[Ar] 4d¹⁰

1s² 2s² 2p⁶ 3s² 3p⁶

13.

What type of bonding would be expected for solid xenon

Van der Waals

Ionic bond

Covalent bond

Metallic bond

Xenon bond

14.

subatomic particles found on the outermost shell & responsible for the atom's reactivity

neutrons

valence electrons

isotopes

ions

15.

The Aufbau principle states that:

electrons enter the lowest available energy level

electrons enter one orbital at a time

electrons enter an orbital in the highest energy level available

electrons only enter the lowest energy level if the ones with a higher energy are full

16.

The lowest available energy state of an electron is called the:

the lowest state

the ground state

the entry state

the fixed state

17.

How many full p-orbitals are there in an atom of Bromine?

18.

Which of the following quantum number sets is not allowed?

{ 3, 2, +1, -1/2 }

{ 5, 3, -1, +1/2 }

{ 12, 1, +2, +1/2 }

{ 7, 6, -5, -1/2 }

19.

What is the (n+l) value for 4d orbital?

20.

Which subshell has (n+l) value equal to 2?

21.

What is the (n+l) value for 4d orbital?

100 %

Atomic structure

Total questions: 21

Worksheet time: 32mins

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