Find the number of neutrons in an atom represented by 4521X.

Chemistry

WAEC 2008

Find the number of neutrons in an atom represented by 45₂₁X.

A. 21
B. 24
C. 45
D. 66

Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts

WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 127076

WAEC and NECO CBT App for Mobile Devices - Candidates, Schools, Centres, Resellers - 100% Offline -Download Now

Correct Answer: Option B

Explanation

No official explanation is available for this question at this time. Please check contributions posted by others below. If you can provide an explanation to help other student learn, please click here

Previous Next

Go back to Chem classroom

Report an Error Ask A Question Download App

WAEC and NECO CBT Software for Computers and Laptops - Candidates, Schools, Centres, Resellers - 100% Offline -Download Now

Contributions ({{ comment_count }})

Please wait...

{{ settings.no_comment_msg ? settings.no_comment_msg : 'There are no comments' }}

Quick Questions

Does WAEC give Calculator to student for there exam? Answer this

1 Answers · Mathematics · 2 days ago
2(3)+2? Answer this

1 Answers · Mathematics · 2 days ago
what does productivity of grass means and what are they? Answer this

1 Answers · Agricultural Science · 15 hours ago

WAEC offline past questions - with all answers and explanations in one app - Download for free

Find the number of neutrons in an atom represented by 4521X.

Correct Answer: Option B

Explanation

Contributions ({{ comment_count }})

Please wait...

Modal title

Report

Block User

{{ feedback_modal_data.title }}

Quick Questions

Post your Contribution

Sign In