What is each vertical column of elements in the periodic table called?
a. row
b. list
c. group
d. period

According to the vsepr theory what is the shape of a molecule that has a central atom valence three other items with no lone pairs of electrons

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

Apropane torch is lit inside a hot air balloon during preflight preparations to inflate the balloon. which condition of the gas remains constant