2
4
5
6
Correct answer is A
Neutral Be has 4 electrons but \(Be^{2+}\) means it has lost two electrons from possible four and became a positive ion.
\(\therefore\) the number of electrons left will be equal to two.
Puzzles Questions and Answers
Logical Reasoning Questions and Answers
Quantitative Reasoning Questions and Answers
Data Interpretation Questions and Answers
Abstract Reasoning Questions and Answers
Spatial Reasoning Questions and Answers
Verbal Reasoning Questions and Answers
Personality Test
Nigeria General Knowledge Questions and Answers
Typing Speed and Accuracy Test
Situational Judgement Questions and Answers
Numerical Reasoning Questions and Answers
Microsoft Office Questions and Answers
See all →