Given a mole each for iron and magnesium, the number of atoms of each element is equal. Iron has a greater mass due to its greater molecular weight. The correct statement among the choices is D.
Hey there,
Answer:
4 valence electrons.
Hope this helps :D
<em>~Top☺</em>
Technically it's grp 1 elements...the answer is ribidium Rb
The white-tailed deer. (D)
The rest are plants, which make their own energy from photosynthesis.
Mg + 2H(NO)3 ⇒ Mg(NO3)2 + H2
