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The answer choices for this question wasn't provided. Oxygen has the smallest atomic radius. The higher the electronegativity in an element makes the atomic radius smaller.
Potassium Dichromate
No. H2 does not have a permanent dipole moment.
The ending of the second element is changed to -ide
A lone pair of electrons takes up space despite being very small. Lone pairs have a greater repulsive effect than bonding pairs. This is because there are already other forces needing to be taken into consideration with bond pairs.
So to summarize: Lone pair-lone pair repulsion > lone pair-bond pair repulsion > bond pair-bond pair repulsion. This makes the molecular geometry different.
The type of bond is determined by the difference in electrongativity of atoms
The same atoms can combine in more than one ratio.
The ClF2+ ion is bent. (The VSEPR AXE notation is AX2E2 ). The ClF2- ion (AX2E3) is linear.
If the electronegativity difference between two atoms is below 1.7, then the two atoms form covalent bond.
A molecular bond
1s22s22p63s23p64s23d5
K+
Dipole-dipole forces play a significant role when a molecule is polar.
