Which element has similar properties to lithium?

How many miles of water are produced if 5.43 mol pbo2 are consumed

What is the mass defect of a mole of nuclei with 1.8 x 10^15 j/mol binding energy?

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