If you are talking about the Gold-foil experiment:
During Rutherford's time, the JJ Thomson (plum pudding) model was the accepted version of an atom. However when Rutherford shot positive alpha particle rays at a piece of gold foil. Some of the particles bounced back, meaning that Atoms had a positive center. Most of the particles went through, which means that Atoms are mostly empty space.
If you have a neutral atom (like you normally would) then the number of electrons is equal to the number of protons. If you had more electrons then the charge would be negative. In this case, you would have 20 electrons.
Explanation:
a=5
b=9
c=3
d=4
that's the correct brainliest answer
3+2=5
+ + +
1 +3 =4
= = =
4+5=9
Answer:
5
Explanation:
They all matter unless it is a decimal.
Answer:
Healthy ecosystems have an energy source which comes from the sun
-hope this helps! :)
Explanation:
