Hayley is at the beach. She applies sunscreen to her skin to protect it from which energy from the Sun? visible light infrared radiation ultraviolet radiation thermal energy

Electric charge is what ? a. kinetic energy b. radiation c. discovery d. electricity

Ican determine the molar mass of an element by looking on the under the atomic mass for the element. for example the molar mass of phosphorus is 30.974 grams/mole. avogadro’s number tells me the amount of representative particles in 1 mole of any substance. this means 12.011 gram sample of carbon and a 32.0 gram sample of sulfur have the same number of atoms.

Elements in group 2 are all called alkaline earth metals. what is most similar about the alkaline earth metals?