The elements are electrically neutral, this is they have the same amount of positive as negative charge.
Electrons and protons have each the same amount of charge but different sign. Eletrons are negative and protons are positive.
Then to be neutral, the number of electrons must be equal to the number of protons. This mean that the element must have 12 electrons.
Answer: 12.
A +5 charge because the isotope will want to lose those electrons.
Answer:
A substance is a form of matter that will have a constant composition of evenly distributed products.
Explanation:
(Has to be the same everywhere)
Answer:- 
Solution:- percent ionization = 
where, 
is the equilibrium concentration of product ion and c is the initial concentration of the acid.
Let's plug in the values in the formula:
In general, the acid is represented as HA, the ice table is shown as:
I 0.10 0 0
C -X +X +X
E (0.10 - X) X X
where X is the change in concentration that we already have find out using percentage ionization formula.
![Ka=\frac{[H^+][A^-]}{[HA]}](https://tex.z-dn.net/?f=Ka%3D%5Cfrac%7B%5BH%5E%2B%5D%5BA%5E-%5D%7D%7B%5BHA%5D%7D)
Let's plug in the values in it:
0.003 is almost negligible as compared to 0.10, so (0.10 - 0.003) could be taken as 0.10.
Second choice is the right one.
It is the periodic table
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