Answer:
The element argon is in column 8A and is a noble gas. Nobles gases are completely stable because their outershell is filled with all eight electrons. Argon has eight valence electrons.
Answer:
no .........................
Answer:
substance is related to the average kinetic energy of the particles of that substance
Explanation:
Answer:
the answer is not correct
Mg gained mass because it went from being a single element (on the reactant side) to being a molecule (on the product side).