What happens when an atom loses electron?

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

At stp, which substance is the best conductor of electricity? a. nitrogen b. neon c. sulfur d. silver

What is the formula of the ionic compound composed of calcium cations and chloride anions