Ch. 10 Quiz Questions

The electronegativity value for Mg is 1.2 and the value for O is 3.5. Based on these values, what type of bond is expected for a compound formed between Mg and O? A) Ionic B) Pure covalent C) Polar covalent D) not enough information E) none of the above

A

2) How many valence electrons are in the nitrate ion? A) 18 B) 22 C) 23 D) 24 E) 26

D

1) Which of the following statements about Lewis structures is FALSE? A) An octet is when an atom has 8 valence electrons. B) A duet is a stable electron configuration for helium. C) An ionic bond occurs when electrons are transferred. D) A covalent bond occurs when electrons are shared. E) All of the above statements are true.

E

Consider the following electronegativity values: H=2.1, Cl= 3.0, F=4.0 Which molecule below would you expect to have the more polar bond? A) H2 B) Cl2 C) F2 D) HCl E) HF

E)HF

Which of the following is considered a single electron group? a double bond a triple bond a single bond a lone pair of electrons all of the above

all of the above

What is the molecular geometry if you have a double bond, a single bond and 1 lone pair around the central atom?

bent

Which term matches the definition: A separation of charge within a bond?

dipole moment

Which term matches the definition: The ability of an element to attract electrons within a covalent bond?

electronegativity

The elements with the highest electronegativity values tend to be found in the

upper right side of the periodic table