¿25 estructuras de LEWIS para los primeros 25 elementos de la tabla periódica ?

What feature of cell theory is best demonstrated in the image

When elements that form a mineral dissolve in hot water, they form a mixture called a(n) a)geode b)vein c)evaporation d)crystallization e)magma f)lava g)solution h)gem

Why do we perceive objects as retaining their brightness under different lighting levels?