no they do not repel each other
The negative charges of their electrons repel each other.
No. However, the protons within the atoms of the element will repel each other because they have equal positive charge.
atoms
the shared valence electron pairs repel each other.
The electrons in the atoms shape the molecule. The 'outermost' electrons in the atoms are the most important because they are shared between atoms in the bonds. Electrons repel each other because they have the same negative electrical charge, so the bonds tend to repel each other too. If you have a central atom bonded to each of three identical other atoms, the three atoms will form an equilateral triangle because each of the three bonds is trying to get as far away as possible from the others (by repulsion). If the central atom has a fourth bond orbital that has electrons in it, even without another atom, those electrons will push the equilateral triangle of bonds away (and a little closer to each other), making the molecule pyramidal. Without the fourth bond orbital's electrons, the molecule should be triangular and flat.
The negative charges of their electrons repel each other.
The negative charges of their electrons repel each other.
No. However, the protons within the atoms of the element will repel each other because they have equal positive charge.
The unbonded electron pairs repel the chloringe atoms.
The hydrogen atoms in a water molecule have slight positive charges. Particles with like charges (both positive or both negative) will repel each other.
atoms
They repel each other.
the shared valence electron pairs repel each other.
The negative charges of their electrons repel each other.
The electrons in the atoms shape the molecule. The 'outermost' electrons in the atoms are the most important because they are shared between atoms in the bonds. Electrons repel each other because they have the same negative electrical charge, so the bonds tend to repel each other too. If you have a central atom bonded to each of three identical other atoms, the three atoms will form an equilateral triangle because each of the three bonds is trying to get as far away as possible from the others (by repulsion). If the central atom has a fourth bond orbital that has electrons in it, even without another atom, those electrons will push the equilateral triangle of bonds away (and a little closer to each other), making the molecule pyramidal. Without the fourth bond orbital's electrons, the molecule should be triangular and flat.
no
I'm not sure what you mean by "combine", but if atoms are similarly charged, they will not attract... in fact, they will repel each other.