Q2. This question is about the periodicity of the Period 3 elements. (a) State and explain the general trend in first ionisation energy across Period 3. (b) Give one example of an element which deviates from the general trend in first ionisation energy across Period 3. Explain why this deviation occurs. Page 3 of 12 (c) The table shows successive ionisation energies of an element Y in Period 3. lonisation number 1 2 3 4 6 7 8 lonisation energy / kJ mol- 1000 2260 3390 4540 6990 8490 27 100 31 700 Identify element Y. Explain your answer using data from the table. (d) Identify the Period 3 element that has the highest melting point. Explain your answer by reference to structure and bonding.
Q2. This question is about the periodicity of the Period 3 elements. (a) State and explain the general trend in first ionisation energy across Period 3. (b) Give one example of an element which deviates from the general trend in first ionisation energy across Period 3. Explain why this deviation occurs. Page 3 of 12 (c) The table shows successive ionisation energies of an element Y in Period 3. lonisation number 1 2 3 4 6 7 8 lonisation energy / kJ mol- 1000 2260 3390 4540 6990 8490 27 100 31 700 Identify element Y. Explain your answer using data from the table. (d) Identify the Period 3 element that has the highest melting point. Explain your answer by reference to structure and bonding.
Introductory Chemistry: An Active Learning Approach
6th Edition
ISBN:9781305079250
Author:Mark S. Cracolice, Ed Peters
Publisher:Mark S. Cracolice, Ed Peters
Chapter11: Atomic Theory :the Quantum Model Of The Atom
Section: Chapter Questions
Problem 11.5TC
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Transcribed Image Text:Q2.
This question is about the periodicity of the Period 3 elements.
(a)
State and explain the general trend in first ionisation energy across Period 3.
Give one example of an element which deviates from the general trend in first
(b)
ionisation energy across Period 3.
Explain why this deviation occurs.
Page 3 of 12
(c) The table shows successive ionisation energies of an element Y in Period 3.
lonisation number
1
2
3
4
5
6
7
8
lonisation energy
kJ mol-
1000
2260
3390
4540
6990
8490
27 100 31 700
Identify element Y
Explain your answer using data from the table.
(d)
Identify the Period 3 element that has the highest melting point.
Explain your answer by reference to structure and bonding.
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