Exam 1: Chapter 3

Question 1

What is electron affinity?

Answer 1

The energy change associated with the addition of an electron

Question 2

How do nonmetals typically react to adding electrons?

Answer 2

Non-metals tend to gain electrons to become anions

Question 3

What is isoelectronic?

Answer 3

Having the same number of electrons or the same electronic structure

Question 4

How do metals become isoelectronic?

Answer 4

Metals from cations by losing a valence electrons to become the same electron configuration as the PREVIOUS noble gas

Question 5

How do nonmetals becomes isoelectronic?

Answer 5

Nonmetals for anions by gaining valence electrons to become the same electron configuration as the NEXT noble gas

Question 6

What is Coulomb’s law used for?

Answer 6

Calculate the energy between charges

Question 7

What is Coulomb’s law?

Answer 7

E= 2.31x10^-19Jnm (Q1Q2/r). (r=distance between ions, Q=charge)

Question 8

What is a ionic compound?

Answer 8

When a metal and nonmetal react

Question 9

What happens to the metal and non-metal when they react

Answer 9

Metal: loses electrons
Non-metal: Gains electron

Question 10

What is electronegativity?

Answer 10

The ability of an atom in a molecule to attract shared electrons to itself

Question 11

What is a polar bond?

Answer 11

The unequal sharing of electrons