a) give an example for metalloids
b) define tyndall effect
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a-silicon,germanium
b-dispersion of light caused by the particles in it's path
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(a) BORON, SILICON, ARSENIC, GERMANIUM, ANTIMONY, TELLURIUM
(b) The Tyndall effect is the scattering of light as a light beam passes through a colloid. The individual suspension particles scatter and reflect light, making the beam visible.
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