Ch 1-4,6

Question 1

Atoms form ________ charged atoms when they gain electrons

Answer 1

Negatively

Question 2

Formed by the sting attractive forces between positive and negative ions

Answer 2

Ionic bonds

Question 3

Formed when atoms lose, gain, or share valence electrons to acquire an octet of 8 valence electrons

Answer 3

Chemical bonds

Question 4

Occurs when the atoms of one element lose valence electrons and the atoms of another element gain electrons

Answer 4

Ionic bonds

Question 5

Occur when monuments atoms share electrons to attain a noble gas arrangement

Answer 5

Covalent bonds

Question 6

Group 1, 2, 3 on periodic table

Answer 6

Metals

Question 7

Have low ionization energies

Readily lose one or more of their valence electrons to form ions with a positive charge

Lose electrons until they have the same number of valence electrons as the nearest noble has, usually 8 valence electrons

Answer 7

Metals

Question 8

Group 5,6,7

Answer 8

Non metals

Question 9

Have high ionization energies

Readily gain one or more valence electrons to form ions with a negative charge in ionic compounds

Gain electrons until they have the same number of valence electrons as the nearest noble gas, usually 8 valence electrons

Answer 9

Non metals

Question 10

Calcium and chlorine
Identify each as a metal or nonmetal
State number of valence electrons

Answer 10

Calcium: metal
Chlorine: nonmetal

Calcium: 2 valence electrons
Chlorine: 7 valence electrons

Question 11

Calcium and chlorine
State number of electrons that must be lost or gained for each to acquire octet

Wrote symbol including ionic charge and name resulting ion

Answer 11

Calcium: lost 2 electrons to acquire octet
Chlorine: gain 1 electron to acquire octet

Ca2+ : calcium
Cl-: chloride

Question 12

Consists of positive and negative charges held together by the strong electrical attractions between oppositely charged ions

Answer 12

Ionic compounds

Question 13

Consist of positive and negative ions
Have ionic bonds between positively and negatively charged ions
Have high melting points
Solid at room temperature

Answer 13

Ionic compounds

Question 14

Represents the symbols and subscripts in the lowest whole number ratio of the atoms or ions

Answer 14

Chemical formula

Question 15

Atom form ______ charged ions when they lose electrons

Answer 15

Positively

Question 16

Substance that has the same composition and properties wherever it is found

Answer 16

Chemical

Question 17

The study of the composition, structure, properties and reactions of matter

Answer 17

Chemistry

Question 18

An explanation of an observation that had been validated by repeated experiments that support a hypothesis

Answer 18

Conclusion

Question 19

Procedure that tests the validity of a hypotheses

Answer 19

Experiment

Question 20

Unverified explanation of a natural phenomenon

Answer 20

Hypothesis

Question 21

Information determined by noting and recording a natural phenomenon

Answer 21

Observation

Question 22

Process of making observations proposing a hypothesis testing the hypothesis and making a conclusion as the validity of the hypothesis

Answer 22

Scientific method

Question 23

A form of writing large and small numbers using a coefficient that is at least 1 but less than 10 followed by a power of 10

Answer 23

Scientific notation

Question 24

SI units 
Mass
Length
Temperature 
Volume 
Time

Answer 24

Mass: kg
Length: m
Temperature: K
Volume: cubic meter m3
Time: s

Question 25

1000. 10^3

Answer 25

Kilo

Question 26

1000 g

Answer 26

1 kg

Question 27

1000 mg

Answer 27

1 g

Question 28

10 mm

Answer 28

1 cm

Question 29

1000 ml

Answer 29

1 L

Question 30

2 pints

Answer 30

1 quart

Question 31

4 quarts

Answer 31

1 gallon

Question 32

16 oz

Answer 32

1 lb

Question 33

3ft

Answer 33

1 yard

Question 34

1 cal

Answer 34

4.184J