Which of the following element is most electropositive?
Correct answer: A. Li
- A. Li
- B. Be
- C. B
- D. C
Explanation
The electropositivity of an element is related to its ability to donate electrons and form positive ions. In the periodic table, electropositivity increases down a group and decreases across a period. Lithium (Li), being an alkali metal in Group 1, is the most electropositive among the options provided. This is because Group 1 elements have a single electron in their outermost shell, which they readily lose to achieve a stable electron configuration, making them highly electropositive.In contrast, Beryllium (Be), Boron (B), and Carbon (C) are less electropositive. Be is in Group 2 and has a higher ionization energy than Li, making it less willing to lose electrons. B is a metalloid and C is a non-metal, both of which are less electropositive than alkali metals like Li.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Periodic Properties and Trends
Periodic properties arise from electron configuration and effective nuclear charge, producing trends in atomic and ionic radius, ionization energy, electron affinity, electronegativity, metallic character and reactivity. Comparisons run across periods and down groups, with attention to common exceptions. The topic also relates these trends to the behavior of s-block and p-block elements.
Practise s-Block and p-Block Elements
1,359 free s-Block and p-Block Elements MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Chemistry questions like this
Chemistry is on 14 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Periodic Properties and Trends questions
Which of the following has least tendency to form unipositive ions in the gaseous state?
Which of the following ions is smallest in size?
The ions Sc3+, Ca2+ and K+ have same electronic configuration as that of
Which of the following ions does not have the electronic configuration same as that of neon?
Which of the following represents the correct order of ionic radii?
Which of the following is strong reducing agent in aqueous solution?