Answer:
A
Explanation:
an element contains only one kind of particle
Answer:
Cu, Zn(NO3)2
Explanation:
Zn is more reactive than Cu, so Cu will be displaced (replaced) in the reaction above.
A solution may exist in any phase so your answer is D. any of the above
hope this helps :)
Answer:Actinide Group
Explanation:Plutonium is a member of the actinide group in the periodic table. Plutonium atoms have 94 electrons and 94 protons with 2 valence electrons in the outer shell. There are 150 neutrons in the most abundant isotope.