For example, if the electronegativity of both atom "a" and "b" in the phet are set to be equivalent, then increasing the electronegativity of atom "a" in the phet simulation and decreasing the electronegativity of atom "b" will result in a bond that is ionic in character.

it's c. elements are placed in rows based on how may valencies electrons have.

answer: e.   sour taste

explanation: acids are those substances which dissociates in water to give ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. acids are sour in taste. example: hcl

bases are those substances which dissociates in water to give ions or accepts ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. bases are bitter in taste. bases are slippery in nature.