You would add a 2 to every blank but 02 the reason why is 2 in the blank of h202 then makes that h404 while putting it in the other blank makes it h4 02 and add the other 02 then it makes it balanced. I’m pretty sure. It’s been a while since I did this in chemistry so don’t take my word for it but I’m pretty sure that’s how!
Answer:
read the passage
Explanation:
the passage has the answer
Answer:
The proton number is found in the periodic table of elements.
Explanation:
<em>The atomic number </em>is the number that defines each element in the periodic table. It accounts on the number of protons in a nucleus of an element, as well as the number of electrons. It is marked by the letter Z.
It should be distinguished from the mass number which is the total number of protons <em>and </em>neutrons inside a nucleus.
