El radio de un átomo de hidrógeno es aproximadamente de 0.37 Å y el radio medio de la órbita terrestre alrededor del Sol es del orden de 1.5 x 108 km. Calcule la relación entre el radio promedio de la órbita terrestre y el radio del átomo de hidrógeno

You may expect bonds between two atoms which each have n covalent lonic metallic hydrogen

Which of the following statements is true about planck’s law

Which set of characteristics best describes igneous rock? a) largest type of rock, made of organic matter, hardest type of rock b) least abundant type of rock, made of other rocks, made mostly of minerals c) found on all continents, contains wavy bands of stripes, contains fossils d) most abundant type in earth's crust, made of magma/lava, contains no fossils