Which element is a liquid at 25 celsius degrees and 1.0 atm?

(a) bromine (b) krypton
(c) phosphorus (d) xenon

Three cards with holes are arranged in a straight line. a light is shined through the first card’s hole and travels through all three cards. what does this tell you about light rays? a) that light is reflected b) that light is refractive c) that light travels in a straight line d) that light does not travel in a straight line

Identify two types of chemical bonding in the source of dietary potassium

How are isotopes of the same chemical element alike? how are they different?