ΔPORFA QUE ALGUIEN RESPONDA LO ANTES POSIBLE ES URGENTEΔ Dados los siguietes elementos, Ai, Fe, Cs, As, Be, K,Xe.
a-clasificalos según su electronegatividad{metales, no metales, metaloides o gases nobles}.
B-indicar nombre y grupo al que pertenecen.
C-Ordenar según el orden creciente de su electronegatividad.
ΔPORFA QUE ALGUIEN RESPONDA LO ANTES POSIBLE ES URGENTEΔ

Which of the following observations indicates that there is a small, dense, positively charged part in the center of an atom? some uncharged particles are scattered by a gold foil. all uncharged particles are attracted towards a gold foil. all positively charged particles pass straight through a gold foil. some positively charged particles bounce back from a gold foil.

How do dying stars contribute to the formation of planets

If a gas has an initial pressure of 101kpa and a volume of 10l, then it expands to a volume of 20l, what is the new pressure?