Comments on: O Levels Chemistry Tips Blog Marathon – Day 5

By: pushpa

pushpa — Fri, 20 May 2011 10:23:36 +0000

1ans is d
2 ans is a

By: pushpa

pushpa — Fri, 20 May 2011 10:20:48 +0000

1 ans is d
2 ans is a

By: sadia

sadia — Thu, 04 Mar 2010 11:03:08 +0000

ans of 1 is C and 2 is A

By: QUANSAH ALBERT

QUANSAH ALBERT — Sat, 02 May 2009 15:50:25 +0000

1.the answer is D.This is because the K-Shell takes a maximum of 2 electrons.L-Shell 8,M-Shell 8 and the last shell N takes the 2.
2.The answer is A.Since X and Y have different proton numbers which exceeds their electrons the answer chosen is valid.

By: rija

rija — Thu, 30 Apr 2009 11:05:41 +0000

question 1 answer is d.but can it be a?abd question 2 answer is A.