Home / Aptitude Tests / Chemistry / The ions X- and Y+ a...

The ions X_- and Y₊ are isoelectronic, ...

The ions X_- and Y₊ are isoelectronic, each containing a total of 10 electrons.
How many protons are in the nuclei of the neutral atoms of X and Y respectively?

A.

10 and 10

B.

9 and 9

C.

11 and 9

D.

9 and 11

View answer & explanation

Correct answer is D

X- means one excess electron, hence 9 protons while Y +/- means one deficit electron hence 11 protons X and Y = 9 and 11

See all Chemistry questions & answers

See more JAMB questions & answers

Similar Questions

Which of the following acids is dibasic? ...

What is the atomic number of Gold? ...

Oil spillage in ponds and creeks can be cleaned up by? ...

Use the diagram above to answer this question Which of the following structural formula is NOT isom...

Which of the following apparatus is NOT used in volumetric analysis? ...

Which of the following compounds will leave a metal residue when heated? ...

Metals which react with steam only when they are red-hot include...

Alkanes react with the halogens mainly by ...

Which type of salt is found in antacid medications and is used to relieve heartburn and indigestion?...

Which of the following statements explains why tetraoxosulphate (IV) acid is reqarded as a strong ac...

Aptitude Tests

Numerical Reasoning Questions and Answers

Abstract Reasoning Questions and Answers

Spatial Reasoning Questions and Answers

Typing Speed and Accuracy Test

Microsoft Office Questions and Answers

Quantitative Reasoning Questions and Answers

Data Interpretation Questions and Answers

Personality Test

Verbal Reasoning Questions and Answers

Logical Reasoning Questions and Answers

Nigeria General Knowledge Questions and Answers

Situational Judgement Questions and Answers

Puzzles Questions and Answers

View latest jobs in Nigeria today