13. You have 180 g of radium that takes up 36 cm of space. If you were to cut the radium in half so you have only 90 g of radium, how much space would i take up and what would be its now density?

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.  

i'm pretty sure it is letter c.) car

idk what the question is about