Answer:
a rain of asteroids coming from space
Explanation:
Answer:
A piece of gold foil was hit with alpha particles, which have a positive charge. Most alpha particles went right through. This showed that the gold atoms were mostly empty space. Some particles had their paths bent at large angles. A few even bounced backward. The only way this would happen was if the atom had a small, heavy region of positive charge inside it.
D is to stop the current and the force can be removed
Answer:
25th electron
Explanation:
the last electron is the valence electron. Assuming it has equal numbers of protons and electrons, then the 25th electron is the valence.
Answer:
(A) H2CO3 = H20 + CO2
Explanation:
Carbonic acid is formed from carbon dioxide and water so its equation will be
H2CO3 → H2O + CO2
The equation is balanced as same no of atoms of each specie is present both sides
