Which of the following explains how movement of material within Earth causes volcanic eruptions? a
One plate moves below the other due to the movements in inner core
b
One plate moves below the other due to the movements in mantle
C с
A plate slides past another due to the movements in inner core
Od
A plate slides past another due to movements in mantle

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.  

the density(ratio between mass and volume as m/v) decreases from top to bottom in periodic table group as the size increases and nuclear charge decreases. but in periods density increases from left to right as atom size decreases and nuclear charge increases.

thats a little if u want the answer just look it up on google thats what i do haha : )

the formula mass of a molecule or a compound is the sum of the atomic weights of the atoms in its empirical formula

(that's what i know about formula mass)