Learning Path
Question & Answer1
Understand Question2
Review Options3
Learn Explanation4
Explore TopicChoose the Best Answer
A
The new element will have a higher ionization energy than halogens.
B
The new element will have a lower electronegativity than halogens.
C
The new element will exhibit non-metallic character like halogens.
D
The new element will have a larger atomic radius than halogens.
Understanding the Answer
Let's break down why this is correct
Answer
The new Group 1 element will have a very low ionization energy and a low electronegativity, so it will readily lose its single valence electron and form a +1 ion, unlike halogens that gain an electron to reach a stable octet. Because it is metallic, it will react violently with water, producing hydrogen gas and a hydroxide, whereas halogens react with metals to produce halide salts. The metal’s tendency to donate rather than accept electrons explains its high reactivity with water, while halogens’ high electronegativity makes them eager to accept electrons. Thus, the Group 1 element behaves as a highly reactive, electron‑donating metal, in contrast to the electron‑accepting, nonmetallic halogens.
Detailed Explanation
Alkali metals are very easy to lose one electron. Other options are incorrect because Misconception: people think heavier elements always need more energy to remove an electron; Misconception: thinking alkali metals look like non‑metals.
Key Concepts
Periodic Properties
Reactivity of Elements
Electronegativity
Topic
Periodic Properties
Difficulty
medium level question
Cognitive Level
understand
Practice Similar Questions
Test your understanding with related questions
1
Question 1A chemist is studying an unknown element that is found in Group 14 of the Periodic Table. Based on its position, which of the following properties is most likely to be observed for this element?
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2
Question 2A chemist is analyzing a new element discovered in Group 1 of the periodic table. They note its high reactivity, especially with water, and predict its metallic character. Given the trends of periodic properties, which of the following statements best explains the expected behavior of this element compared to elements in Group 17 (halogens)?
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Practice
3
Question 3A chemist is studying an unknown element that is found in Group 14 of the Periodic Table. Based on its position, which of the following properties is most likely to be observed for this element?
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Practice
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