Question

6. Name two elements you would expect to show chemical reactions simi
magnesium. What is the basis for your choice?
7. An electric bulb is rated at 60W, 240V. Calculate its resistance. If the voltage dro
192V, calculate the power consumed and the current drawn by the bulb. As
that the resistance of the bulb remains unchanged).
metallic character and why?​

Answer 1

6》

Calcium (Ca) and strontium (Sr) are expected to show chemical reactionssimilar to magnesium (Mg). This is because the number of valence electrons (2) is same in all these threeelements. And since chemicalproperties are due to valence electrons, they show same chemical reactions.

7》 dont know