<u>Answer:</u> Non-metals form ions when they gain electrons.
<u>Explanation:</u>
An ion is formed when an atom looses or gains electron.
- When an atom looses electrons, it will form a positive ion known as cation.
- When an atom gains electrons, it will form a negative ion known as anion.
Metals are the elements which have a tendency to loose electrons and thus they form cations. <u>Example:</u> Sodium will loose 1 electron to form
ion.
Non-metals are the elements which have a tendency to gain electrons and thus they form anions. <u>Example:</u> Fluorine will gain 1 electron to form
ion.
Hence, non-metals form ions when they gain electrons.
Answer:
deposition is the change from gas to solid
Answer:
B) 3rd
Explanation:
The 3rd ionization energy represents the removal of electrons from a filled core shell.
The electron configuration of calcium is [Ar]4s^2. Hence after the removal of the second electron from the 4s^2 orbital, a lot of energy is required to remove an electron from the next completely filled core shell. This is the highest successive jump in ionization energy. The other options in the question deal with electrons found on the same shell.
Yes oil and water is a solution not a mixture