Step by step solution: The position of hydrogen is controversial in the periodic table because hydrogen is the only element without neutrons. Hydrogen is a nonmetal and is placed above the group in the periodic table because it has ns1 electron configuration like the alkali metals.
D.) There must be an equal number of atoms of each element on both sides of the equation
Answer:
d I think there's two answer
Explanation:
or c
KE=.5mv^2
M=mass
v=velocity
.5(4)(100)=200
That should be the answer.
