chapter 7

Question 1

valence electrons

Answer 1

electrons in the highest occupied energy level

Question 2

number of valence electrons determines

Answer 2

chemical properties of an element

Question 3

lewis dot structures

Answer 3

show valence electrons as dots

Question 4

octet rule

Answer 4

in forming compounds, atoms tend to achieve the electron config of a noble gas

Question 5

noble gases are

Answer 5

unreactive in chemical reactions

Question 6

atoms of which elemnts tend to lose valence electrons?

Answer 6

metals

Question 7

atoms of which elements tend to gain electrons?

Answer 7

nonmetals

Question 8

cations

Answer 8

positive, formed by loss of electrons

Question 9

anions

Answer 9

negative, formed by gaining electrons

Question 10

metals make

Answer 10

cations

Question 11

nonmetals make

Answer 11

anions

Question 12

halide ions

Answer 12

produced when halogens gain electrons

Question 13

ionic compounds

Answer 13

compounds composed of cations and anions

Question 14

ionic bonds

Answer 14

electrostatic forces that hold ions together in ionic compounds

Question 15

formula unit

Answer 15

lowest whole number ratio of ions in an ionic compound

Question 16

properties of iconic compounds

Answer 16

solid at room temp, high melting points, good conductors when a solution or melted

Question 17

structure of ionic compounds

Answer 17

crystalline

Question 18

coordination number

Answer 18

number of ions of opposite charge that surrounded the ion in a crystal

Question 19

valence elcectrons of metal atoms can be modeled as

Answer 19

sea of electrons

Question 20

metals are

Answer 20

ductile

Question 21

exceptions to octet rule

Answer 21

hydrogen, boron needs 6, some elemts in period 3 or higher can have more than 8

Question 22

alloys

Answer 22

mixtures of two or more elements, at least one of which is a metal