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

The densest of the everyday metals

Answer 3

lead

Question 4

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

Answer 4

carbon

Question 5

anything that takes up space and bass mass

Answer 5

matter

Question 6

the two particles that make up the nucleus of an atom

Answer 6

protons and neutron

Question 7

The measure of the pull of gravity on an object

Answer 7

weight

Question 8

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

Answer 8

gram or kilograms

Question 9

the amount of matter that makes up an object

Answer 9

mass

Question 10

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

Answer 10

electrons

Question 11

the amount of matter in one unit of volume

Answer 11

density

Question 12

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

Answer 12

nucleus

Question 13

the tiny particles of which all matter is composed

Answer 13

atoms

Question 14

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

Answer 14

chlorine

Question 15

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

Answer 15

nitrogen

Question 16

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

Answer 16

iodine

Question 17

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

Answer 17

halogens

Question 18

the organized arrangement of all known elements

Answer 18

periodic table of the elements

Question 19

the simplest kind of atom with one proton and one electron

Answer 19

hydrogen

Question 20

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

Answer 20

chemistry

Question 21

the most abundant element at the surface of the earth

Answer 21

oxygen

Question 22

the number of protons an atom has

Answer 22

atomic number

Question 23

lacking an electrical charge

Answer 23

neutral

Question 24

formed by electrons zooming around the nucleus of an atom

Answer 24

electron cloud

Question 25

The three main groups of elements

Answer 25

metals, nonmetals, semimetals

Question 26

two or more atoms firmly bound together

Answer 26

molecule

Question 27

what changes when an object changes from place to place

Answer 27

the weight changes

Question 28

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

Answer 28

sublimes

Question 29

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

Answer 29

more

Question 30

Protons have what kind of charge?

Answer 30

positive

Question 31

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

Answer 31

compound

Question 32

a substance that is composed of only one type of atom

Answer 32

element

Question 33

two electrons ________ each other (repel or attract)

Answer 33

repel

Question 34

A neutral atom has an ______ number of protons and electrons

Answer 34

equal

Question 35

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

Answer 35

chemical reaction

Question 36

a compound made of molecules

Answer 36

molecular compound

Question 37

the hardest of all known substances

Answer 37

diamond

Question 38

the rapid reaction of any substance with oxygen

Answer 38

combustion

Question 39

a compound made of charged atoms

Answer 39

ionic compound