Is there a picture? If not then it’s probably precipitate
Hope this helps! Na+ lost an electron, so I just left a "+" symbol to show that, and fluorine gained an electron, hence the "-" symbol.
Because membrane receptors interact with both extracellular signals and molecules within the cell, they permit signaling molecules to affect cell function without actually entering the cell.
Answer:
It can form four covalent bonds.
Explanation:
Carbon is a versatile element because it forms covalent bonds i. e. Single, double, triple and ring or branched etc with other atoms. It forms only covalent bond not ionic bond because carbon has four electrons in its outermost shell. If they make ionic bond, they have to gain 4 electrons and become anion or it has to lose 4 electrons and become cation. So they prefer to make covalent bonds.
