If an electric circuit is not grounded it is best to reach out and touch it to provide the ground a. true or b. false

What do elements in a family tend to share. a.) similar periods b.) similar groups c.) similar atomic symbols d.) similar chemical properties and characteristics

Which of the following are considered noble gases? a. bromine b. neon c. argon d. chlorine

Astudent wears sunglasses to her read a book more easily which wave interaction occurs as light passes from the air into the plastic lenses? a polarization b.refraction c.diffraction d. interference