Which of the following statements are true? I. The number of protons in an element is always the same for all neutral atoms of that element. II. The number of electrons in an element is always the same for all neutral atoms and ions of that element. III. The number of neutrons in any element is always equal to the number of protons of that element. IV. The number of neutrons in an element can sometimes vary – resulting in the formation of an unstable isotope that is slightly more (or less) massive than the stable atom of the same element. Group of answer choices I, II, and IV are true I, II, and III are true II and III are true I and II are true I and IV are true

14. complete and balance the equations for the single displacement reactions. a. zn + pb(no3)2 -> b. al + niso4 -> 15. complete and balance the equations for the double displacement reactions. a. agno3(aq) + nacl(aq) -> b. mg(no3)2(aq) + koh(aq) -> 16. complete and balance the equations for the combustion reactions. a. __ ch4 + o2 -> b. __ c3h6 + o2 -> c. + o2 ->

Hannah is writing a report on how albedo affects the global climate. she’s proofreading her passage for any factual errors. which sentence must hannah correct before submitting her report? earth receives energy from the sun. this energy drives many of the processes on earth, including its climate. some part of this energy is reflected by earth’s surface. we use the term albedo to describe the reflected energy. albedo of an object is the ratio of the reflected radiation to the total radiation reaching the object. a value of 0 means no energy is absorbed by the object, whereas a value of 1 means that all of the energy is absorbed. in this way, the albedo of an object can influence earth’s atmospheric temperature.

Give the orbital configuration of the phosphorus (p) atom.