Determinar el grupo atomico de un elemento "E" perteneciente al cuarto periodo y al grupo 4 A de la tabla periodica a)30
b)32
c)4
d)44
e)34

oxygen, selenium, tellurium, and polonium.

they're all from the same group as sulfur (group 16).

warm front forms when a moist, warm air mass slides up and over a cold air mass. as the warm air mass rises, it condenses into a broad area of clouds. a warm front brings gentle rain or light snow, followed by warmer, milder weather.

hope i !