Lesson 1.3.2
1.3.2 Electronic configurations and s, p, d blocks Quiz: Pearson Edexcel Chemistry, Unit 1
20 questions
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Lesson 1.3.2, Electronic configurations and s, p, d blocks: 20 multiple choice questions for the Pearson Edexcel Chemistry (9CH0), Unit 1: Atomic Structure and the Periodic Table, written with Revision Ninja.
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The 20 questions
-
What is the electronic configuration of a neutral sodium atom?
- 1s2 2s2 2p6 3s1
- 1s2 2s2 2p6 3s2
- 1s2 2s2 2p5 3s2
- 1s2 2s2 2p6 3p1
-
The electronic configuration of an element is [Ar] 3d10 4s2 4p3. Which block does it belong to?
- f-block
- p-block
- s-block
- d-block
-
Which ion has the same electron configuration as argon?
- Al
- Mg2+
- Na+
- Cl-
-
Which electronic configuration is correct for a chromium atom (Z = 24)?
- 1s2 2s2 2p6 3s2 3p6 3d4 4s2
- 1s2 2s2 2p6 3s2 3p6 3d6
- 1s2 2s2 2p6 3s2 3p6 4s2 4p4
- 1s2 2s2 2p6 3s2 3p6 3d5 4s1
-
What is the electronic configuration of the Fe3+ ion? (Fe has Z = 26.)
- [Ar] 4s1 3d4
- [Ar] 3d6
- [Ar] 3d3
- [Ar] 3d5
-
Which block of the periodic table contains elements whose highest-energy electron is in an s sub-shell?
- p-block
- s-block
- f-block
- d-block
-
How many unpaired electrons does an oxygen atom have? (Configuration 1s2 2s2 2p4.)
- 2
- 4
- 0
- 6
-
How do electrons initially fill orbitals in a 2p3 sub-shell?
- Singly
- Paired
- Randomly
- Quadruply
-
Which element has the electronic configuration [Ne] 3s2 3p3?
- Phosphorus
- Chlorine
- Silicon
- Sulphur
-
What is the block of an element with configuration [Ar] 3d2 4s2?
- p-block
- f-block
- d-block
- s-block
-
How many electrons are in the 3d sub-shell of a Mn2+ ion? (Mn has Z = 25.)
- 3
- 7
- 2
- 5
-
What is the atomic number of the neutral atom with configuration 1s2 2s2 2p6 3s2 3p3?
- 15
- 14
- 17
- 13
-
Why is the Zn2+ ion not classed as a transition metal ion?
- Partial p sub-shell
- Full s sub-shell
- Empty d sub-shell
- Full d sub-shell
-
What is the electronic configuration of the vanadium(II) ion?
- [Ar] 3d2 4s1
- [Ar] 3d5
- [Ar] 3d3
- [Ar] 3d1 4s2
-
What is the electronic configuration of a Cu+ ion?
- [Ar] 3d10
- [Ar] 3d10 4s1
- [Ar] 3d8 4s2
- [Ar] 3d9 4s1
-
What is the correct electronic configuration of the Fe2+ ion?
- [Ar] 3d5 4s1
- [Ar] 3d4 4s2
- [Ar] 3d6
- [Ar] 3d8
-
What defines which block an element belongs to in the periodic table?
- Total number of shells
- Highest energy sub-shell
- Neutron to proton ratio
- Number of core electrons
-
Which electronic configuration corresponds to the Ca2+ ion? (Ca has Z = 20.)
- 1s2 2s2 2p6 3s2 3p4
- 1s2 2s2 2p6 3s2 3p6 3d2
- 1s2 2s2 2p6 3s2 3p6 4s2
- 1s2 2s2 2p6 3s2 3p6
-
Which atom has the electronic configuration 1s2 2s2 2p6 3s2 3p4?
- Phosphorus
- Sulfur
- Selenium
- Oxygen
-
How many unpaired electrons does a ground-state chromium atom have?
- 0
- 4
- 6
- 2
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