Question
Chemistry Question on p -Block Elements
Halogens are all coloured because
A
In their molecules the outer electrons are excited to high energy levels by absorption of visible light
B
Their atoms absorb energy causing the excitation of outer electron to high energy level
C
Their atoms have higher electronegativity
D
Their atoms have high electron affinity
Answer
In their molecules the outer electrons are excited to high energy levels by absorption of visible light
Explanation
Solution
Visible light is absorbed and the complementary colour is emitted