chapter 4 - chemical bonding

Question 1

name of negative ions

Answer 1

anions

Question 2

name of positive ions

Answer 2

cations

Question 3

definition of anions

Answer 3

anions have a net negative charge and usually have a noble gas electronic configuration

Question 4

definition of cations

Answer 4

cations have a net positive charge and usually have a noble gas electronic configuration

Question 5

definition of an ionic bond

Answer 5

it is the mutual electrostatic attraction between ions of opposite charges

Question 6

what is an ionic bond made of?

Answer 6

(ions) metals and non-metals

Question 7

example of an ionic structure

Answer 7

giant ionic crystal lattice

Question 8

what is a giant ionic crystal lattice?

Answer 8

it is a three-dimensional structure of alternating positive and negative ions

Question 9

definition of valency

Answer 9

valency refers to the number of electrons that must be lost, gained or shared in order for the atom to attain a noble gas electronic configuration

Question 10

what is a covalent bond made of?

Answer 10

(atoms) non-metals

Question 11

definition of metallic bond

Answer 11

it is the mutual electrostatic attraction between positively charged ions in a metal and the ‘sea of mobile electrons’

Question 12

what is a metallic bond made of?

Answer 12

metals

Question 13

example of a metallic structure

Answer 13

giant metallic lattice structure

Question 14

examples of a covalent structure

Answer 14

simple covalent molecules
giant covalent molecules