Answer:
evaporation and distillation
Explanation:
the liquids have different booking points that is why it works
Answer:
The nucleus of the atom contains the protons and neutrons. The protons are positively charged while the neutrons have no charge; they are neutral. The outer part of the atom contains the electrons and shells or orbits. The electrons are negatively charged while the shells or orbits hold the atoms in its place.
Answer:
Option C = three electrons are gained, making N⁻³
Explanation:
Nitrogen is present in group 5A.
Its atomic number is seven.
It have five valance electrons.
Its electronic configuration is N₇ = [He] 2s² 2p³
In order to complete the valance shell or 2p subshell nitrogen must gain three more electrons.
When an atom gain the electrons anions are formed and negative charge is created on it.
When an atom lose its valance electrons cation is formed and positive charge is created.
That's why when nitrogen gain three electrons to complete the valance shell N⁻³ is formed.
Fills volume of the container.
Why? Because the gas particles have a very weak force of attraction so they move very freely and so they always fill the volume of containers.
if a substance loose electrons, then it is called oxidation and if a substance gain electrons, then it is called reduction.
Note:
LEO GER=Loose Electron Oxidation Gain Electron Reduction.
