Test 10 - chapter 6

Question 1

The halogen that is added to toothpaste and drinking water

Answer 1

fluorine

Question 2

Most metals are…

Answer 2

solid

Question 3

A very hard metal which is an important ingredient in stainless steel

Answer 3

nickel

Question 4

The densest of the everyday metals

Answer 4

lead

Question 5

The element that is the basic building block of all the compounds

Answer 5

carbon

Question 6

The semimetal that is used to make computer chips

Answer 6

silicon

Question 7

The only metal that is liquid at room temperature

Answer 7

mercury

Question 8

anything that takes up space and bass mass

Answer 8

matter

Question 9

the two particles that make up the nucleus of an atom

Answer 9

protons and neutron

Question 10

The measure of the pull of gravity on an object

Answer 10

weight

Question 11

The metric unit that is used to measure an object’s mass

Answer 11

gram or kilograms

Question 12

the amount of matter that makes up an object

Answer 12

mass

Question 13

the tiny particles that swarm at tremendous speeds around the core of an atom

Answer 13

electrons

Question 14

the amount of matter in one unit of volume

Answer 14

density

Question 15

the tiny, extremely dense core at the center of an atom

Answer 15

nucleus

Question 16

the tiny particles of which all matter is composed

Answer 16

atoms

Question 17

The halogen that is useful as a bleach and a germ-killing agent

Answer 17

chlorine

Question 18

The colorless, odorless gas that makes up 78% of the earth’s atmosphere

Answer 18

nitrogen

Question 19

The halogen that is added to table salt to prevent a deficiency disease

Answer 19

iodine

Question 20

the elements which do not combine with anything else except under unusual circumstances

Answer 20

noble gases

Question 21

highly reactive elements that tend to form compounds with alkali and alkaline earth metals

Answer 21

halogens

Question 22

the organized arrangement of all known elements

Answer 22

periodic table of the elements

Question 23

the simplest kind of atom with one proton and one electron

Answer 23

hydrogen

Question 24

the study of what substances are made of and how one substance can be changed into another

Answer 24

chemistry

Question 25

formed by electrons that are in orbit the same distance from the nucleus

Answer 25

shell

Question 26

the most abundant element at the surface of the earth

Answer 26

oxygen

Question 27

the number of protons an atom has

Answer 27

atomic number

Question 28

lacking an electrical charge

Answer 28

neutral

Question 29

formed by electrons zooming around the nucleus of an atom

Answer 29

electron cloud

Question 30

The three main groups of elements

Answer 30

metals, nonmetals, semimetals

Question 31

two or more atoms firmly bound together

Answer 31

molecule

Question 32

what changes when an object changes from place to place

Answer 32

the weight changes

Question 33

Iodine when heard does not melt it does this, or turns to gas

Answer 33

sublimes

Question 34

If two objects have the same volume but different densities. the object made of the denser substance will weigh…

Answer 34

more

Question 35

Protons have what kind of charge?

Answer 35

positive

Question 36

a substance composed of one or more types of atoms bonded together

Answer 36

compound

Question 37

a substance that is composed of only one type of atom

Answer 37

element

Question 38

two electrons ________ each other (repel or attract)

Answer 38

repel

Question 39

A neutral atom has an ______ number of protons and electrons

Answer 39

equal

Question 40

a proces in which atoms of elements or compounds are rearranged to form new substances

Answer 40

chemical reaction

Question 41

a compound made of molecules

Answer 41

molecular compound

Question 42

the hardest of all known substances

Answer 42

diamond

Question 43

the rapid reaction of any substance with oxygen

Answer 43

combustion

Question 44

a compound made of charged atoms

Answer 44

ionic compound