A flight simulator that helps astronauts prepare for a shuttle launch is an example of a Scientific Model.
Substances have more kinetic energy in the gas state than in the solid state
Answer:
4. trigonal planar symmetry.
Explanation:
The sp2 hybridization is formed with one s and two p atomic orbitals and form trigonal planar symmetry. In sp2 hybridization, there are same valence shell in both the orbitals and it gives three equivalent sp2 hybridized orbitals that are separated by 120 degrees giving trigonal planar symmetry.
Hence, the correct answer is "4. trigonal planar symmetry.".
Answer:
The elements that are commonly positive ions are metals. But there are a few gases that can become positively charged by losing electrons.
