cameroon gce o level June 2019 chemistry 2

cameroon gce o level June 2019 chemistry 2

cameroon gce o level June 2019 chemistry 2

This question concerns the first four elements in group I of the periodic Table

Lithium Sodium Potassium Rubidium
Element
(Li) (Na) ( K) (Rb)
37
Atomic Number 3 I I 19

(a) ( i) Why are they classified as Group I elements?
(1 mark)
(ii) Which of the element is the least reactive?
(1 mark)
(iii) Write the electronic configuration of potassium (K

PDF is loading please wait...

 

Comments

comments

2 comments on “cameroon gce o level June 2019 chemistry 2

Leave a comment

Your email address will not be published. Required fields are marked *

Download our application
kawlo
sponsors Ads