Question

Often, scientists who want to demonstrate chemical bonding use models with colored balls to represent atoms. What are the chemical models of bonding based on?

scientific data that has been gathered by experimentation

the work of JJ Thompson, creator of the Plum-Pudding model

philosophical discourse since atoms are submicroscopic

photographs of atoms that show their different colors and sizes

Answer 1

photographs of atoms that are submicroscopic and philosophical?

JJ thompson, plum pudding model ==> atom is a cloud of positive charge with negative charges dotted around within like raisins.

3 types of chemical bonds

covalent => atoms share electrons in their outer orbitals, to create stability. As a full outer shell is stable, electron deficient atoms and electron excess atoms bond this way.

ionic ==> the electron deficiency or excess causes and negative or positive charge on an atom, pulling them together with an electrostatic force

metallic => myriad atoms all tightly bound, i.e Fe, with the electrons is a delocalised state, free to move around the structure/lattice. This is why metal is conductive.

Van de Walls => irrelevant to your question, but is an instantaneous bond through dipole-dipole interaction, the molecule H20 is polarized with negative charges and positive charges collecting at H+ and 0-. This causes other water molecules to attract one another, forming water.


Later I find, 'model' is precisely what they are.

Answer 2

@Iamgmg90 what kind of bullsh*t answer is that?