If an element contains two shells only and its outershell contains five electrons then to which group the element belongs in the periodic table. Name elements predict its period

Acrystal that absorvd water from air is (blank)a. aqueousb. homogenousc. hygroscopicd. efflorescent

Stage in which a typical star has completely stopped fusion

Great amounts of electromagnetic energy from our sun and other bodies in space travel through space. which is a logical conclusion about these electromagnetic waves? their energy must be very their frequency must be very low these waves can travel without a medium they only travel through a vacuum of space