The correct answer is A) the number of electrons that fill the outer shell.
Brady
Comets are usually formed of ice and other suave debris, while asteroids typically contain metals.
Answer:
Both gives hydroxides, but
Calcium reacts with water to give calcium hydroxide Ca(OH)2. this product is slightly soluble in water.
Aluminium is less reactive than Ca, so it reacts with only steam, to give aluminium hydroxide Al(OH)3. This product is insoluble in water.
The chloride ion /ˈklɔːraɪd/ is the anion (negatively charged ion) Cl−
