(Timed) What part of an atom involved in a chemical reaction?
A. proton
B. neutron
C. nucleus
D. electron

Which atom or ion is the largest? 0 a. 0 0 0 0 e. li

Select all of the methods through which a drug can enter your body. injection swallowing inhalation absorption

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