The picture shows a statute of Abraham Lincoln. Your friend tells you the statute has a dull luster. What does luster tell you about a mineral?
the color it makes when rubbed against a hard surface
how hard the mineral is
what color the mineral is
how light is reflected from the surface of the mineral

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Explanation:

what are u asking? confused and what picture

Explanation:

answer: option (b) is the correct answer.

explanation:

a covalent bond is formed by sharing of electrons. whereas polarity arises due to difference in electronegativity of two atoms.

therefore, more is the electronegativity of an atom which combines with the titanium, more readily it will induce a partial positive and negative charge.

thus, out of the given options fluorine is most electronegative and has an incomplete octet. therefore, it will readily combine with titanium to share the electrons and complete its octet.